MASTER Net MASTER Database: GRB210807.96 page

Please use the reference to MASTER DataBase as Lipunov et al., 2010, MASTER Robotic Net, Advances in Astronomy, vol. 2010, p.30L

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GRB coord: ErrorBox (deg): Sys Error (deg):
Sattel : Trigger: Notice:
GRB_Name: trignum: Nights after: FullSky


Name FERMI GRB210807.96
Trignum 650069729
Trigger time 2021-08-07 22:55:24.31
Notice time 2021-08-07 23:00:02.905799
Coord, eb (09h 43m 07.20s , -50d 31m 12.0s) , 1.75
Max dist: 1 sigma 3 sigma
AGN candidates: Milliquas
r90wise
wiseXgaia
BL Lac candidates: 1 Sigma
3 Sigma

MASTER observatories and transients from them in error-field
Kislovodsk Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Amur Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tunka Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAFA Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
IAC Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
SAAO Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tavrida Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAGH Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)

You are viewing outdated information, relevant error box is here

All alerts for this trigger
id noticetime coord2000 satel errorbox type trigger seq trig_type links
2456420 2024-05-14 16:35:53.686237 09h 50m 12.00s -51d 26m 24.0s FERMI 1.66 retraction 650069729 1 4044 retraction
1683885 2021-08-07 23:05:02.80246 09h 50m 12.00s -51d 26m 24.0s FERMI 1.66 alert 650069729 7 115 alert
1683854 2021-08-07 23:00:02.905799 09h 43m 07.20s -50d 31m 12.0s FERMI 1.75 alert 650069729 12 112 alert
1683826 2021-08-07 22:58:55.36237 08h 48m 31.92s -56d 12m 00.0s FERMI 6.13 alert 650069729 16 111 alert

DAYS:

MASTER optical transients in this field
Will be published in GCN, ATEL

Synchronous WFC images
Distance datetime coord2000 observatory camera links
38.1 2021-08-07 22:53:52.464 11h 37m 20.00s -19d 48m 00.0s OAFA 29008 Database OAFA
38.1 2021-08-07 22:52:24.473 11h 37m 20.00s -19d 48m 00.0s OAFA 111342 Database OAFA
Errorbox center visibility at MASTER facilities
trigger notice notice+1hr now

2021-08-07 22:55:24 (JD 2459434.455139)

Siderial time 22.543316 h

Ra 09:43:07.20 Dec -50:31:12.00
(145.780000d, -50.520000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -30.53 Azimuth: 313.83

Sun: Altitude: 25.28 Azimuth: 274.87

Moon: Altitude: 33.90 Azimuth: 275.04

Tunka

Object: Altitude: -43.60 Azimuth: 300.89

Sun: Altitude: 10.15 Azimuth: 256.59

Moon: Altitude: 18.76 Azimuth: 257.17

Kislovodsk

Object: Altitude: -76.48 Azimuth: 306.12

Sun: Altitude: -25.72 Azimuth: 207.04

Moon: Altitude: -17.71 Azimuth: 210.49

Tavrida

Object: Altitude: -81.74 Azimuth: 317.59

Sun: Altitude: -27.15 Azimuth: 198.11

Moon: Altitude: -19.55 Azimuth: 202.56

SAAO

Object: Altitude: -7.01 Azimuth: 2.84

Sun: Altitude: -73.54 Azimuth: 347.93

Moon: Altitude: -76.84 Azimuth: 316.16

IAC

Object: Altitude: -51.58 Azimuth: 42.96

Sun: Altitude: -34.75 Azimuth: 139.47

Moon: Altitude: -32.69 Azimuth: 149.55

Argentina

Object: Altitude: 26.73 Azimuth: 45.21

Sun: Altitude: -11.29 Azimuth: 102.23

Moon: Altitude: -19.51 Azimuth: 104.96

Mexico

Object: Altitude: -0.50 Azimuth: 26.40

Sun: Altitude: 40.30 Azimuth: 85.26

Moon: Altitude: 37.55 Azimuth: 95.78

Ural

Object: Altitude: -68.97 Azimuth: 266.68

Sun: Altitude: -8.74 Azimuth: 220.79

Moon: Altitude: -0.66 Azimuth: 223.84

Vostryakovo

Object: Altitude: -81.03 Azimuth: 242.42

Sun: Altitude: -16.30 Azimuth: 200.54

Moon: Altitude: -8.82 Azimuth: 204.96

Gal. latitude: 1.923993 Gal. longitude: 275.533479

Dist. to Sun: 67.126346

Dist. to Moon: 74.107342

Moon coord.: (131.512567 d, 22.505059 d)

Sun coord.: (137.805850 d, 16.238793 d)

Lunar disk: 0.005685

Lunar phase: 171.351927

Lunar bright limb: 135.319456

No SN in this field

2021-08-07 23:00:02 (JD 2459434.458356)

Siderial time 22.620750 h

Ra 09:43:07.20 Dec -50:31:12.00
(145.780000d, -50.520000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -30.00 Azimuth: 314.42

Sun: Altitude: 26.01 Azimuth: 275.79

Moon: Altitude: 34.61 Azimuth: 275.95

Tunka

Object: Altitude: -42.98 Azimuth: 301.45

Sun: Altitude: 10.85 Azimuth: 257.47

Moon: Altitude: 19.43 Azimuth: 258.01

Kislovodsk

Object: Altitude: -75.80 Azimuth: 304.95

Sun: Altitude: -25.33 Azimuth: 208.19

Moon: Altitude: -17.30 Azimuth: 211.48

Tavrida

Object: Altitude: -81.16 Azimuth: 314.46

Sun: Altitude: -26.89 Azimuth: 199.32

Moon: Altitude: -19.25 Azimuth: 203.61

SAAO

Object: Altitude: -7.05 Azimuth: 2.10

Sun: Altitude: -73.31 Azimuth: 344.12

Moon: Altitude: -76.16 Azimuth: 312.83

IAC

Object: Altitude: -52.28 Azimuth: 42.55

Sun: Altitude: -35.41 Azimuth: 140.57

Moon: Altitude: -33.19 Azimuth: 150.63

Argentina

Object: Altitude: 26.04 Azimuth: 44.94

Sun: Altitude: -12.25 Azimuth: 101.66

Moon: Altitude: -20.42 Azimuth: 104.45

Mexico

Object: Altitude: -0.95 Azimuth: 26.99

Sun: Altitude: 39.31 Azimuth: 85.92

Moon: Altitude: 36.59 Azimuth: 96.27

Ural

Object: Altitude: -68.34 Azimuth: 267.74

Sun: Altitude: -8.33 Azimuth: 221.84

Moon: Altitude: -0.24 Azimuth: 224.78

Vostryakovo

Object: Altitude: -80.43 Azimuth: 245.16

Sun: Altitude: -16.06 Azimuth: 201.67

Moon: Altitude: -8.56 Azimuth: 205.97

Gal. latitude: 1.923993 Gal. longitude: 275.533479

Dist. to Sun: 67.125158

Dist. to Moon: 74.091768

Moon coord.: (131.556153 d, 22.495914 d)

Sun coord.: (137.808921 d, 16.237883 d)

Lunar disk: 0.005643

Lunar phase: 171.384062

Lunar bright limb: 135.473107

No SN in this field

2021-08-08 00:00:02 (JD 2459434.500023)

Siderial time 23.623487 h

Ra 09:43:07.20 Dec -50:31:12.00
(145.780000d, -50.520000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -23.62 Azimuth: 322.39

Sun: Altitude: 35.35 Azimuth: 288.57

Moon: Altitude: 43.54 Azimuth: 288.83

Tunka

Object: Altitude: -35.39 Azimuth: 308.93

Sun: Altitude: 20.03 Azimuth: 268.99

Moon: Altitude: 28.22 Azimuth: 269.05

Kislovodsk

Object: Altitude: -66.47 Azimuth: 298.56

Sun: Altitude: -19.09 Azimuth: 222.22

Moon: Altitude: -11.02 Azimuth: 223.67

Tavrida

Object: Altitude: -72.30 Azimuth: 298.00

Sun: Altitude: -22.09 Azimuth: 214.26

Moon: Altitude: -14.20 Azimuth: 216.55

SAAO

Object: Altitude: -6.45 Azimuth: 352.50

Sun: Altitude: -65.93 Azimuth: 307.48

Moon: Altitude: -65.39 Azimuth: 287.58

IAC

Object: Altitude: -60.57 Azimuth: 33.93

Sun: Altitude: -42.32 Azimuth: 156.85

Moon: Altitude: -38.04 Azimuth: 165.99

Argentina

Object: Altitude: 17.33 Azimuth: 40.72

Sun: Altitude: -24.86 Azimuth: 94.30

Moon: Altitude: -32.43 Azimuth: 97.86

Mexico

Object: Altitude: -7.50 Azimuth: 33.95

Sun: Altitude: 26.46 Azimuth: 93.71

Moon: Altitude: 24.31 Azimuth: 102.45

Ural

Object: Altitude: -60.19 Azimuth: 279.33

Sun: Altitude: -2.24 Azimuth: 234.95

Moon: Altitude: 5.74 Azimuth: 236.76

Vostryakovo

Object: Altitude: -72.14 Azimuth: 266.23

Sun: Altitude: -11.97 Azimuth: 215.91

Moon: Altitude: -4.27 Azimuth: 218.72

Gal. latitude: 1.923993 Gal. longitude: 275.533479

Dist. to Sun: 67.109780

Dist. to Moon: 73.890654

Moon coord.: (132.120311 d, 22.376375 d)

Sun coord.: (137.848690 d, 16.226097 d)

Lunar disk: 0.005117

Lunar phase: 171.795664

Lunar bright limb: 137.560039

No SN in this field

2025-05-05 05:23:36 (JD 2460800.724722)

Siderial time 22.790651 h

Ra 09:43:07.20 Dec -50:31:12.00
(145.780000d, -50.520000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -28.85 Azimuth: 315.74

Sun: Altitude: 48.45 Azimuth: 45.57

Moon: Altitude: 23.14 Azimuth: 271.28

Tunka

Object: Altitude: -41.65 Azimuth: 302.69

Sun: Altitude: 54.19 Azimuth: 8.46

Moon: Altitude: 8.20 Azimuth: 253.17

Kislovodsk

Object: Altitude: -74.27 Azimuth: 302.87

Sun: Altitude: 35.96 Azimuth: 282.49

Moon: Altitude: -26.39 Azimuth: 202.76

Tavrida

Object: Altitude: -79.81 Azimuth: 309.05

Sun: Altitude: 29.78 Azimuth: 276.52

Moon: Altitude: -27.37 Azimuth: 193.73

SAAO

Object: Altitude: -7.10 Azimuth: 0.47

Sun: Altitude: 1.79 Azimuth: 249.46

Moon: Altitude: -74.43 Azimuth: 1.75

IAC

Object: Altitude: -53.78 Azimuth: 41.55

Sun: Altitude: -12.54 Azimuth: 243.58

Moon: Altitude: -31.92 Azimuth: 136.26

Argentina

Object: Altitude: 24.51 Azimuth: 44.32

Sun: Altitude: -70.59 Azimuth: 320.38

Moon: Altitude: -8.26 Azimuth: 104.72

Mexico

Object: Altitude: -1.96 Azimuth: 28.25

Sun: Altitude: -35.45 Azimuth: 146.02

Moon: Altitude: 44.00 Azimuth: 83.58

Ural

Object: Altitude: -66.95 Azimuth: 269.94

Sun: Altitude: 40.09 Azimuth: 308.80

Moon: Altitude: -9.57 Azimuth: 216.93

Vostryakovo

Object: Altitude: -79.09 Azimuth: 250.30

Sun: Altitude: 30.12 Azimuth: 285.76

Moon: Altitude: -16.45 Azimuth: 196.48

Gal. latitude: 1.923993 Gal. longitude: 275.533479

Dist. to Sun: 111.067023

Dist. to Moon: 67.340430

Moon coord.: (145.541637 d, 16.820103 d)

Sun coord.: (42.164700 d, 16.232268 d)

Lunar disk: 0.567126

Lunar phase: 82.284621

Lunar bright limb: 289.574915

No SN in this field
Recent coverage and limits telegrams

 #######################################################################################
#######################################################################################

  ID = 4798
TYPE = 35
DAYS = 2


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB 210807C ( Fermi GBM team, GCN 30609) errorbox  114 sec after notice time and 206 sec after trigger time at 2021-08-07 22:58:50 UT, with upper limit up to  18.6 mag. Observations started at twilight.  The observations began at zenith distance = 64 deg. The sun  altitude  is -12.1 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the FERMI GRB 210807C errorbox  15419 sec after notice time and 15511 sec after trigger time at 2021-08-08 03:13:56 UT, with upper limit up to  18.5 mag. The observations began at zenith distance = 81 deg. The sun  altitude  is -27.5 deg. 

The galactic latitude b =  2 deg., longitude l = 277 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683885

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

     222 | 2021-08-07 22:58:50 |         MASTER-OAFA | (09h 51m 36.60s , -48d 08m 16.7s) |   C |    30 | 16.4 |        
     285 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.94s , -50d 38m 28.4s) |   C |    20 | 16.6 |        
     320 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.95s , -50d 38m 28.4s) |   C |    90 | 17.3 |  Coadd 
     615 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.93s , -50d 38m 28.5s) |   C |   680 | 18.3 |  Coadd 
     330 | 2021-08-07 23:00:39 |         MASTER-OAFA | (09h 32m 26.75s , -50d 36m 58.8s) |   C |    30 | 16.8 |        
     384 | 2021-08-07 23:01:28 |         MASTER-OAFA | (09h 32m 26.54s , -50d 38m 17.9s) |   C |    40 | 17.0 |        
     449 | 2021-08-07 23:02:28 |         MASTER-OAFA | (09h 32m 28.68s , -50d 37m 04.2s) |   C |    50 | 17.1 |        
     524 | 2021-08-07 23:02:28 |         MASTER-OAFA | (09h 32m 28.68s , -50d 37m 04.3s) |   C |   200 | 17.8 |  Coadd 
     528 | 2021-08-07 23:03:37 |         MASTER-OAFA | (09h 32m 22.55s , -50d 37m 43.5s) |   C |    70 | 17.3 |        
     622 | 2021-08-07 23:05:06 |         MASTER-OAFA | (09h 32m 22.46s , -50d 36m 42.4s) |   C |    80 | 17.5 |        
     732 | 2021-08-07 23:06:46 |         MASTER-OAFA | (09h 32m 28.12s , -50d 37m 41.4s) |   C |   100 | 17.7 |        
     877 | 2021-08-07 23:06:46 |         MASTER-OAFA | (09h 32m 28.14s , -50d 37m 41.5s) |   C |   390 | 18.3 |  Coadd 
     866 | 2021-08-07 23:08:45 |         MASTER-OAFA | (09h 32m 22.16s , -50d 38m 40.7s) |   C |   130 | 17.9 |        
    1030 | 2021-08-07 23:11:14 |         MASTER-OAFA | (09h 32m 29.66s , -50d 38m 09.7s) |   C |   160 | 18.0 |        
    1220 | 2021-08-07 23:14:14 |         MASTER-OAFA | (09h 32m 25.67s , -50d 37m 04.8s) |   C |   180 | 18.2 |        
    1400 | 2021-08-07 23:14:14 |         MASTER-OAFA | (09h 32m 25.67s , -50d 37m 04.8s) |   C |   540 | 18.6 |  Coadd 
    1420 | 2021-08-07 23:17:34 |         MASTER-OAFA | (09h 32m 25.60s , -50d 38m 34.9s) |   C |   180 | 18.2 |        
    1619 | 2021-08-07 23:20:53 |         MASTER-OAFA | (09h 32m 28.21s , -50d 36m 47.5s) |   C |   180 | 18.3 |        
    1819 | 2021-08-07 23:24:13 |         MASTER-OAFA | (09h 32m 22.92s , -50d 37m 36.2s) |   C |   180 | 18.2 |        
    1999 | 2021-08-07 23:24:13 |         MASTER-OAFA | (09h 32m 22.92s , -50d 37m 36.2s) |   C |   540 | 18.6 |  Coadd 
    2019 | 2021-08-07 23:27:32 |         MASTER-OAFA | (09h 32m 22.25s , -50d 36m 35.5s) |   C |   180 | 18.3 |        
    2218 | 2021-08-07 23:30:52 |         MASTER-OAFA | (09h 32m 28.88s , -50d 37m 34.8s) |   C |   180 | 18.3 |        
    2417 | 2021-08-07 23:34:11 |         MASTER-OAFA | (09h 32m 22.28s , -50d 38m 34.3s) |   C |   180 | 18.2 |        
    2597 | 2021-08-07 23:34:11 |         MASTER-OAFA | (09h 32m 22.29s , -50d 38m 34.3s) |   C |   540 | 18.6 |  Coadd 
    2617 | 2021-08-07 23:37:31 |         MASTER-OAFA | (09h 32m 29.11s , -50d 38m 18.2s) |   C |   180 | 18.2 |        
    2816 | 2021-08-07 23:40:50 |         MASTER-OAFA | (09h 32m 25.11s , -50d 36m 58.5s) |   C |   180 | 18.3 |        
    3016 | 2021-08-07 23:44:09 |         MASTER-OAFA | (09h 32m 25.02s , -50d 38m 21.0s) |   C |   180 | 18.3 |        
    3196 | 2021-08-07 23:44:09 |         MASTER-OAFA | (09h 32m 25.02s , -50d 38m 21.0s) |   C |   540 | 18.5 |  Coadd 
    3215 | 2021-08-07 23:47:29 |         MASTER-OAFA | (09h 32m 28.03s , -50d 36m 52.9s) |   C |   180 | 18.2 |        
    3415 | 2021-08-07 23:50:49 |         MASTER-OAFA | (09h 32m 21.71s , -50d 37m 32.1s) |   C |   180 | 18.2 |        
    3614 | 2021-08-07 23:54:08 |         MASTER-OAFA | (09h 32m 21.47s , -50d 36m 31.4s) |   C |   180 | 18.1 |        
    3794 | 2021-08-07 23:54:08 |         MASTER-OAFA | (09h 32m 21.47s , -50d 36m 31.5s) |   C |   540 | 18.5 |  Coadd 
    3814 | 2021-08-07 23:57:27 |         MASTER-OAFA | (09h 32m 27.57s , -50d 37m 32.7s) |   C |   180 | 17.9 |        
    4013 | 2021-08-08 00:00:47 |         MASTER-OAFA | (09h 32m 20.35s , -50d 38m 40.0s) |   C |   180 | 18.1 |        
    4212 | 2021-08-08 00:04:06 |         MASTER-OAFA | (09h 32m 27.14s , -50d 38m 22.6s) |   C |   180 | 18.1 |        
    4392 | 2021-08-08 00:04:06 |         MASTER-OAFA | (09h 32m 27.14s , -50d 38m 22.6s) |   C |   540 | 18.5 |  Coadd 
    4412 | 2021-08-08 00:07:26 |         MASTER-OAFA | (09h 32m 23.81s , -50d 36m 49.8s) |   C |   180 | 18.1 |        
    4612 | 2021-08-08 00:10:46 |         MASTER-OAFA | (09h 32m 23.52s , -50d 38m 37.4s) |   C |   180 | 18.1 |        
    4811 | 2021-08-08 00:14:05 |         MASTER-OAFA | (09h 32m 25.80s , -50d 36m 50.7s) |   C |   180 | 18.1 |        
    5330 | 2021-08-08 00:22:44 |         MASTER-OAFA | (09h 32m 23.46s , -50d 36m 07.4s) |   C |   180 | 17.6 |        
    5847 | 2021-08-08 00:31:20 |         MASTER-OAFA | (09h 32m 22.91s , -50d 38m 05.8s) |   C |   180 | 17.5 |        
    6366 | 2021-08-08 00:40:00 |         MASTER-OAFA | (09h 32m 21.93s , -50d 36m 57.0s) |   C |   180 | 17.2 |        
    6884 | 2021-08-08 00:48:38 |         MASTER-OAFA | (09h 32m 25.05s , -50d 36m 50.2s) |   C |   180 | 17.2 |        
    7402 | 2021-08-08 00:57:16 |         MASTER-OAFA | (09h 32m 16.96s , -50d 36m 40.0s) |   C |   180 | 16.9 |        
    7921 | 2021-08-08 01:05:55 |         MASTER-OAFA | (09h 32m 16.80s , -50d 38m 40.1s) |   C |   180 | 16.7 |        
    8437 | 2021-08-08 01:14:31 |         MASTER-OAFA | (09h 32m 17.73s , -50d 36m 54.2s) |   C |   180 | 16.6 |        
    8956 | 2021-08-08 01:23:10 |         MASTER-OAFA | (09h 32m 20.07s , -50d 36m 39.2s) |   C |   180 | 16.1 |        
    9475 | 2021-08-08 01:31:49 |         MASTER-OAFA | (09h 32m 10.94s , -50d 36m 17.5s) |   C |   180 | 14.0 |        
   15602 | 2021-08-08 03:13:56 |         MASTER-SAAO | (09h 34m 22.59s , -51d 21m 56.9s) |   C |   180 | 17.5 |        
   15821 | 2021-08-08 03:18:35 |         MASTER-SAAO | (09h 34m 33.31s , -53d 49m 38.0s) |   C |    60 | 17.1 |        
   16826 | 2021-08-08 03:35:20 |         MASTER-SAAO | (09h 34m 39.31s , -53d 50m 28.1s) |   C |    60 | 17.2 |        
   16909 | 2021-08-08 03:36:42 |         MASTER-SAAO | (09h 46m 08.85s , -51d 56m 40.6s) |   C |    60 | 16.9 |        
   16988 | 2021-08-08 03:38:02 |         MASTER-SAAO | (09h 59m 07.64s , -51d 55m 13.5s) |   C |    60 | 16.7 |        
   17437 | 2021-08-08 03:44:31 |         MASTER-SAAO | (09h 34m 23.58s , -51d 22m 26.5s) |   C |   180 | 17.7 |        
   17885 | 2021-08-08 03:52:59 |         MASTER-SAAO | (09h 46m 06.87s , -51d 57m 03.5s) |   C |    60 | 17.0 |        
   17965 | 2021-08-08 03:54:19 |         MASTER-SAAO | (09h 59m 05.00s , -51d 55m 36.2s) |   C |    60 | 16.7 |        
   18104 | 2021-08-08 03:55:38 |         MASTER-SAAO | (09h 34m 20.01s , -51d 21m 47.3s) |   C |   180 | 17.4 |        
   18244 | 2021-08-08 03:58:58 |         MASTER-SAAO | (09h 46m 16.94s , -50d 04m 15.7s) |   C |    60 | 16.6 |        
   18324 | 2021-08-08 04:00:17 |         MASTER-SAAO | (09h 58m 41.44s , -50d 02m 00.5s) |   C |    60 | 16.9 |        
   18406 | 2021-08-08 04:01:39 |         MASTER-SAAO | (09h 46m 48.50s , -53d 50m 38.2s) |   C |    60 | 17.1 |        
   18485 | 2021-08-08 04:02:59 |         MASTER-SAAO | (10h 00m 16.63s , -53d 50m 40.7s) |   C |    60 | 17.0 |        
   18565 | 2021-08-08 04:04:19 |         MASTER-SAAO | (09h 46m 59.39s , -48d 09m 24.8s) |   C |    60 | 17.0 |        
   18645 | 2021-08-08 04:05:39 |         MASTER-SAAO | (09h 58m 52.45s , -48d 10m 02.7s) |   C |    60 | 17.0 |        
   18804 | 2021-08-08 04:08:18 |         MASTER-SAAO | (09h 34m 29.08s , -51d 58m 28.5s) |   C |    60 | 17.6 |        
   18884 | 2021-08-08 04:09:38 |         MASTER-SAAO | (09h 46m 13.20s , -51d 56m 52.7s) |   C |    60 | 17.3 |        
   18964 | 2021-08-08 04:10:57 |         MASTER-SAAO | (09h 59m 04.75s , -51d 56m 57.7s) |   C |    60 | 16.9 |        
   19188 | 2021-08-08 04:13:42 |         MASTER-SAAO | (09h 34m 13.12s , -51d 23m 10.8s) |   C |   180 | 17.6 |        
   19328 | 2021-08-08 04:17:01 |         MASTER-SAAO | (09h 35m 05.51s , -50d 04m 44.2s) |   C |    60 | 17.4 |        
   19407 | 2021-08-08 04:18:21 |         MASTER-SAAO | (09h 46m 14.37s , -50d 03m 01.1s) |   C |    60 | 16.7 |        
   19487 | 2021-08-08 04:19:41 |         MASTER-SAAO | (09h 58m 41.67s , -50d 03m 46.2s) |   C |    60 | 16.5 |        
   19567 | 2021-08-08 04:21:01 |         MASTER-SAAO | (09h 46m 47.61s , -53d 50m 55.3s) |   C |    60 | 16.4 |        
   19647 | 2021-08-08 04:22:21 |         MASTER-SAAO | (10h 00m 16.07s , -53d 51m 05.3s) |   C |    60 | 15.9 |        
   19727 | 2021-08-08 04:23:40 |         MASTER-SAAO | (09h 46m 53.28s , -48d 08m 45.4s) |   C |    60 | 15.6 |        
   19807 | 2021-08-08 04:25:01 |         MASTER-SAAO | (09h 58m 58.11s , -48d 09m 21.4s) |   C |    60 | 15.2 |        
   19967 | 2021-08-08 04:27:40 |         MASTER-SAAO | (09h 34m 31.21s , -51d 58m 46.9s) |   C |    60 | 16.7 |        
   20126 | 2021-08-08 04:30:20 |         MASTER-SAAO | (10h 10m 52.59s , -51d 56m 22.2s) |   C |    60 | 15.6 |        
   36434 | 2021-08-08 09:01:07 |         MASTER-OAFA | (09h 32m 14.87s , -50d 34m 40.0s) |   C |   180 | 15.9 |        
   37260 | 2021-08-08 09:15:53 |         MASTER-OAFA | (09h 32m 29.54s , -51d 10m 44.1s) |   C |    60 | 16.0 |        
   37693 | 2021-08-08 09:23:07 |         MASTER-OAFA | (09h 32m 28.40s , -53d 06m 13.3s) |   C |    60 | 15.9 |        
   38247 | 2021-08-08 09:31:20 |         MASTER-OAFA | (09h 32m 35.95s , -51d 58m 22.7s) |   C |   180 | 17.2 |        
   38503 | 2021-08-08 09:36:37 |         MASTER-OAFA | (09h 32m 38.63s , -52d 33m 43.4s) |   C |    60 | 16.8 |        
   38787 | 2021-08-08 09:41:21 |         MASTER-OAFA | (09h 44m 07.63s , -51d 10m 22.2s) |   C |    60 | 16.2 |        
   39118 | 2021-08-08 09:46:52 |         MASTER-OAFA | (09h 57m 24.77s , -52d 33m 35.3s) |   C |    60 | 16.6 |        
   39275 | 2021-08-08 09:48:29 |         MASTER-OAFA | (09h 32m 12.20s , -50d 35m 20.5s) |   C |   180 | 17.1 |        
   39526 | 2021-08-08 09:53:39 |         MASTER-OAFA | (09h 32m 32.30s , -51d 11m 11.4s) |   C |    60 | 17.0 |        
   39618 | 2021-08-08 09:55:12 |         MASTER-OAFA | (09h 44m 31.28s , -50d 41m 35.9s) |   C |    60 | 17.0 |        
   39710 | 2021-08-08 09:56:44 |         MASTER-OAFA | (09h 56m 41.80s , -49d 16m 04.1s) |   C |    60 | 16.2 |        
   39801 | 2021-08-08 09:58:15 |         MASTER-OAFA | (09h 44m 20.50s , -52d 35m 20.5s) |   C |    60 | 17.0 |        
   39896 | 2021-08-08 09:59:50 |         MASTER-OAFA | (09h 44m 38.63s , -53d 05m 04.5s) |   C |    60 | 16.7 |        
   39990 | 2021-08-08 10:01:23 |         MASTER-OAFA | (09h 58m 22.75s , -54d 27m 19.2s) |   C |    60 | 16.7 |        
   40089 | 2021-08-08 10:03:03 |         MASTER-OAFA | (09h 57m 08.55s , -51d 10m 44.0s) |   C |    60 | 16.3 |        
   40182 | 2021-08-08 10:04:36 |         MASTER-OAFA | (09h 45m 14.79s , -48d 47m 16.6s) |   C |    60 | 16.9 |        
   40321 | 2021-08-08 10:05:55 |         MASTER-OAFA | (09h 32m 27.58s , -51d 58m 23.7s) |   C |   180 | 17.5 |        
   40567 | 2021-08-08 10:11:01 |         MASTER-OAFA | (09h 44m 30.03s , -50d 39m 59.6s) |   C |    60 | 17.0 |        
   40667 | 2021-08-08 10:12:41 |         MASTER-OAFA | (09h 56m 40.04s , -49d 16m 37.4s) |   C |    60 | 16.3 |        
   40760 | 2021-08-08 10:14:14 |         MASTER-OAFA | (09h 44m 17.53s , -52d 33m 42.3s) |   C |    60 | 16.9 |        
   40840 | 2021-08-08 10:15:34 |         MASTER-OAFA | (09h 44m 55.57s , -54d 28m 38.8s) |   C |    60 | 16.7 |        
   40935 | 2021-08-08 10:17:09 |         MASTER-OAFA | (09h 58m 10.67s , -53d 05m 50.8s) |   C |    60 | 16.1 |        
   41027 | 2021-08-08 10:18:41 |         MASTER-OAFA | (09h 57m 20.91s , -52d 35m 07.3s) |   C |    60 | 16.3 |        
   41106 | 2021-08-08 10:20:00 |         MASTER-OAFA | (09h 45m 10.78s , -48d 45m 59.6s) |   C |    60 | 16.4 |        
   41325 | 2021-08-08 10:22:39 |         MASTER-OAFA | (09h 32m 24.09s , -51d 59m 06.7s) |   C |   180 | 16.9 |        
   41465 | 2021-08-08 10:25:58 |         MASTER-OAFA | (09h 33m 12.05s , -50d 39m 58.8s) |   C |    60 | 16.5 |        
   41655 | 2021-08-08 10:29:09 |         MASTER-OAFA | (09h 44m 23.55s , -50d 41m 45.9s) |   C |    60 | 15.8 |        
   41735 | 2021-08-08 10:30:29 |         MASTER-OAFA | (09h 56m 57.34s , -50d 40m 58.7s) |   C |    60 | 15.4 |        
   41814 | 2021-08-08 10:31:48 |         MASTER-OAFA | (09h 44m 53.43s , -54d 28m 10.9s) |   C |    60 | 15.3 |        
   41894 | 2021-08-08 10:33:08 |         MASTER-OAFA | (09h 58m 26.21s , -54d 29m 20.7s) |   C |    60 | 15.1 |        
   41994 | 2021-08-08 10:34:47 |         MASTER-OAFA | (10h 07m 51.68s , -49d 16m 28.7s) |   C |    60 | 14.7 |        
   88564 | 2021-08-08 23:30:58 |         MASTER-OAFA | (09h 45m 56.84s , -55d 02m 26.0s) |   C |    60 | 16.9 |        
   89531 | 2021-08-08 23:47:05 |         MASTER-OAFA | (09h 46m 01.27s , -55d 00m 49.1s) |   C |    60 | 16.7 |        
   91137 | 2021-08-09 00:13:51 |         MASTER-OAFA | (10h 10m 23.36s , -53d 06m 48.4s) |   C |    60 | 16.8 |        
   92186 | 2021-08-09 00:31:20 |         MASTER-OAFA | (10h 10m 29.56s , -53d 05m 15.5s) |   C |    60 | 16.9 |        
   93146 | 2021-08-09 00:47:20 |         MASTER-OAFA | (10h 10m 27.31s , -53d 05m 08.5s) |   C |    60 | 16.8 |        
  150812 | 2021-08-09 16:48:26 |         MASTER-SAAO | (09h 45m 23.09s , -49d 56m 08.9s) |   C |    60 | 16.0 |        
  150892 | 2021-08-09 16:49:46 |         MASTER-SAAO | (09h 57m 52.76s , -49d 55m 07.1s) |   C |    60 | 16.4 |        
  150972 | 2021-08-09 16:51:06 |         MASTER-SAAO | (09h 45m 44.78s , -53d 42m 32.7s) |   C |    60 | 16.5 |        
  151052 | 2021-08-09 16:52:26 |         MASTER-SAAO | (09h 59m 23.20s , -53d 43m 35.9s) |   C |    60 | 16.6 |        
  151131 | 2021-08-09 16:53:45 |         MASTER-SAAO | (09h 46m 09.04s , -48d 02m 18.8s) |   C |    60 | 16.6 |        
  151211 | 2021-08-09 16:55:05 |         MASTER-SAAO | (09h 58m 05.83s , -48d 00m 46.0s) |   C |    60 | 16.9 |        
  151370 | 2021-08-09 16:57:44 |         MASTER-SAAO | (09h 33m 32.29s , -51d 49m 18.6s) |   C |    60 | 17.3 |        
  151450 | 2021-08-09 16:59:04 |         MASTER-SAAO | (09h 45m 12.51s , -51d 48m 18.4s) |   C |    60 | 17.4 |        
  151530 | 2021-08-09 17:00:24 |         MASTER-SAAO | (09h 58m 15.78s , -51d 49m 21.8s) |   C |    60 | 17.3 |        
  151752 | 2021-08-09 17:03:06 |         MASTER-SAAO | (09h 33m 21.86s , -51d 12m 33.0s) |   C |   180 | 18.0 |        
  151892 | 2021-08-09 17:06:26 |         MASTER-SAAO | (09h 34m 09.68s , -49d 55m 41.0s) |   C |    60 | 18.0 |        
  151972 | 2021-08-09 17:07:45 |         MASTER-SAAO | (09h 45m 24.97s , -49d 54m 19.2s) |   C |    60 | 17.8 |        
  152051 | 2021-08-09 17:09:05 |         MASTER-SAAO | (09h 57m 45.96s , -49d 55m 07.6s) |   C |    60 | 17.8 |        
  152131 | 2021-08-09 17:10:25 |         MASTER-SAAO | (09h 45m 43.67s , -53d 42m 01.0s) |   C |    60 | 17.8 |        
  152210 | 2021-08-09 17:11:44 |         MASTER-SAAO | (09h 59m 21.13s , -53d 43m 03.2s) |   C |    60 | 18.0 |        
  152290 | 2021-08-09 17:13:04 |         MASTER-SAAO | (09h 46m 02.51s , -48d 02m 00.1s) |   C |    60 | 18.0 |        
  152370 | 2021-08-09 17:14:24 |         MASTER-SAAO | (09h 58m 08.37s , -48d 01m 33.6s) |   C |    60 | 18.1 |        
  152530 | 2021-08-09 17:17:04 |         MASTER-SAAO | (09h 33m 33.96s , -51d 49m 44.4s) |   C |    60 | 18.3 |        
  152609 | 2021-08-09 17:18:23 |         MASTER-SAAO | (09h 45m 16.28s , -51d 48m 12.4s) |   C |    60 | 18.3 |        
  152689 | 2021-08-09 17:19:43 |         MASTER-SAAO | (09h 58m 09.72s , -51d 48m 54.1s) |   C |    60 | 18.1 |        
  152909 | 2021-08-09 17:22:22 |         MASTER-SAAO | (09h 33m 25.50s , -51d 12m 51.2s) |   C |   180 | 18.5 |        
  153048 | 2021-08-09 17:25:42 |         MASTER-SAAO | (09h 34m 06.98s , -49d 55m 40.3s) |   C |    60 | 18.4 |        
  153131 | 2021-08-09 17:27:05 |         MASTER-SAAO | (09h 45m 24.12s , -49d 55m 18.4s) |   C |    60 | 18.3 |        
  153211 | 2021-08-09 17:28:25 |         MASTER-SAAO | (09h 57m 48.40s , -49d 54m 05.8s) |   C |    60 | 18.3 |        
  153291 | 2021-08-09 17:29:45 |         MASTER-SAAO | (09h 45m 46.56s , -53d 43m 14.7s) |   C |    60 | 18.3 |        
  153501 | 2021-08-09 17:33:15 |         MASTER-SAAO | (09h 46m 04.12s , -48d 00m 34.9s) |   C |    60 | 17.9 |        
  153792 | 2021-08-09 17:38:06 |         MASTER-SAAO | (09h 46m 02.26s , -51d 49m 29.1s) |   C |    60 | 14.4 |        
  153952 | 2021-08-09 17:40:45 |         MASTER-SAAO | (09h 34m 11.00s , -49d 53m 25.0s) |   C |    60 | 18.1 |        
  154031 | 2021-08-09 17:42:05 |         MASTER-SAAO | (10h 09m 55.08s , -51d 47m 53.9s) |   C |    60 | 17.9 |        
  154191 | 2021-08-09 17:44:44 |         MASTER-SAAO | (10h 09m 03.76s , -49d 54m 23.0s) |   C |    60 | 18.1 |        
  154430 | 2021-08-09 17:48:43 |         MASTER-SAAO | (09h 33m 37.01s , -53d 42m 59.4s) |   C |    60 | 17.6 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 4794
TYPE = 35
DAYS = 1


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB 210807C ( Fermi GBM team, GCN 30609) errorbox  114 sec after notice time and 206 sec after trigger time at 2021-08-07 22:58:50 UT, with upper limit up to  18.6 mag. Observations started at twilight.  The observations began at zenith distance = 64 deg. The sun  altitude  is -12.1 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the FERMI GRB 210807C errorbox  15419 sec after notice time and 15511 sec after trigger time at 2021-08-08 03:13:56 UT, with upper limit up to  17.7 mag. The observations began at zenith distance = 81 deg. The sun  altitude  is -27.5 deg. 

The galactic latitude b =  2 deg., longitude l = 277 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683881

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

     222 | 2021-08-07 22:58:50 |         MASTER-OAFA | (09h 51m 36.60s , -48d 08m 16.7s) |   C |    30 | 16.4 |        
     285 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.94s , -50d 38m 28.4s) |   C |    20 | 16.6 |        
     320 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.95s , -50d 38m 28.4s) |   C |    90 | 17.3 |  Coadd 
     615 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.93s , -50d 38m 28.5s) |   C |   680 | 18.3 |  Coadd 
     330 | 2021-08-07 23:00:39 |         MASTER-OAFA | (09h 32m 26.75s , -50d 36m 58.8s) |   C |    30 | 16.8 |        
     384 | 2021-08-07 23:01:28 |         MASTER-OAFA | (09h 32m 26.54s , -50d 38m 17.9s) |   C |    40 | 17.0 |        
     449 | 2021-08-07 23:02:28 |         MASTER-OAFA | (09h 32m 28.68s , -50d 37m 04.2s) |   C |    50 | 17.1 |        
     524 | 2021-08-07 23:02:28 |         MASTER-OAFA | (09h 32m 28.68s , -50d 37m 04.3s) |   C |   200 | 17.8 |  Coadd 
     528 | 2021-08-07 23:03:37 |         MASTER-OAFA | (09h 32m 22.55s , -50d 37m 43.5s) |   C |    70 | 17.3 |        
     622 | 2021-08-07 23:05:06 |         MASTER-OAFA | (09h 32m 22.46s , -50d 36m 42.4s) |   C |    80 | 17.5 |        
     732 | 2021-08-07 23:06:46 |         MASTER-OAFA | (09h 32m 28.12s , -50d 37m 41.4s) |   C |   100 | 17.7 |        
     877 | 2021-08-07 23:06:46 |         MASTER-OAFA | (09h 32m 28.14s , -50d 37m 41.5s) |   C |   390 | 18.3 |  Coadd 
     866 | 2021-08-07 23:08:45 |         MASTER-OAFA | (09h 32m 22.16s , -50d 38m 40.7s) |   C |   130 | 17.9 |        
    1030 | 2021-08-07 23:11:14 |         MASTER-OAFA | (09h 32m 29.66s , -50d 38m 09.7s) |   C |   160 | 18.0 |        
    1220 | 2021-08-07 23:14:14 |         MASTER-OAFA | (09h 32m 25.67s , -50d 37m 04.8s) |   C |   180 | 18.2 |        
    1400 | 2021-08-07 23:14:14 |         MASTER-OAFA | (09h 32m 25.67s , -50d 37m 04.8s) |   C |   540 | 18.6 |  Coadd 
    1420 | 2021-08-07 23:17:34 |         MASTER-OAFA | (09h 32m 25.60s , -50d 38m 34.9s) |   C |   180 | 18.2 |        
    1619 | 2021-08-07 23:20:53 |         MASTER-OAFA | (09h 32m 28.21s , -50d 36m 47.5s) |   C |   180 | 18.3 |        
    1819 | 2021-08-07 23:24:13 |         MASTER-OAFA | (09h 32m 22.92s , -50d 37m 36.2s) |   C |   180 | 18.2 |        
    1999 | 2021-08-07 23:24:13 |         MASTER-OAFA | (09h 32m 22.92s , -50d 37m 36.2s) |   C |   540 | 18.6 |  Coadd 
    2019 | 2021-08-07 23:27:32 |         MASTER-OAFA | (09h 32m 22.25s , -50d 36m 35.5s) |   C |   180 | 18.3 |        
    2218 | 2021-08-07 23:30:52 |         MASTER-OAFA | (09h 32m 28.88s , -50d 37m 34.8s) |   C |   180 | 18.3 |        
    2417 | 2021-08-07 23:34:11 |         MASTER-OAFA | (09h 32m 22.28s , -50d 38m 34.3s) |   C |   180 | 18.2 |        
    2597 | 2021-08-07 23:34:11 |         MASTER-OAFA | (09h 32m 22.29s , -50d 38m 34.3s) |   C |   540 | 18.6 |  Coadd 
    2617 | 2021-08-07 23:37:31 |         MASTER-OAFA | (09h 32m 29.11s , -50d 38m 18.2s) |   C |   180 | 18.2 |        
    2816 | 2021-08-07 23:40:50 |         MASTER-OAFA | (09h 32m 25.11s , -50d 36m 58.5s) |   C |   180 | 18.3 |        
    3016 | 2021-08-07 23:44:09 |         MASTER-OAFA | (09h 32m 25.02s , -50d 38m 21.0s) |   C |   180 | 18.3 |        
    3196 | 2021-08-07 23:44:09 |         MASTER-OAFA | (09h 32m 25.02s , -50d 38m 21.0s) |   C |   540 | 18.5 |  Coadd 
    3215 | 2021-08-07 23:47:29 |         MASTER-OAFA | (09h 32m 28.03s , -50d 36m 52.9s) |   C |   180 | 18.2 |        
    3415 | 2021-08-07 23:50:49 |         MASTER-OAFA | (09h 32m 21.71s , -50d 37m 32.1s) |   C |   180 | 18.2 |        
    3614 | 2021-08-07 23:54:08 |         MASTER-OAFA | (09h 32m 21.47s , -50d 36m 31.4s) |   C |   180 | 18.1 |        
    3794 | 2021-08-07 23:54:08 |         MASTER-OAFA | (09h 32m 21.47s , -50d 36m 31.5s) |   C |   540 | 18.5 |  Coadd 
    3814 | 2021-08-07 23:57:27 |         MASTER-OAFA | (09h 32m 27.57s , -50d 37m 32.7s) |   C |   180 | 17.9 |        
    4013 | 2021-08-08 00:00:47 |         MASTER-OAFA | (09h 32m 20.35s , -50d 38m 40.0s) |   C |   180 | 18.1 |        
    4212 | 2021-08-08 00:04:06 |         MASTER-OAFA | (09h 32m 27.14s , -50d 38m 22.6s) |   C |   180 | 18.1 |        
    4392 | 2021-08-08 00:04:06 |         MASTER-OAFA | (09h 32m 27.14s , -50d 38m 22.6s) |   C |   540 | 18.5 |  Coadd 
    4412 | 2021-08-08 00:07:26 |         MASTER-OAFA | (09h 32m 23.81s , -50d 36m 49.8s) |   C |   180 | 18.1 |        
    4612 | 2021-08-08 00:10:46 |         MASTER-OAFA | (09h 32m 23.52s , -50d 38m 37.4s) |   C |   180 | 18.1 |        
    4811 | 2021-08-08 00:14:05 |         MASTER-OAFA | (09h 32m 25.80s , -50d 36m 50.7s) |   C |   180 | 18.1 |        
    5330 | 2021-08-08 00:22:44 |         MASTER-OAFA | (09h 32m 23.46s , -50d 36m 07.4s) |   C |   180 | 17.6 |        
    5847 | 2021-08-08 00:31:20 |         MASTER-OAFA | (09h 32m 22.91s , -50d 38m 05.8s) |   C |   180 | 17.5 |        
    6366 | 2021-08-08 00:40:00 |         MASTER-OAFA | (09h 32m 21.93s , -50d 36m 57.0s) |   C |   180 | 17.2 |        
    6884 | 2021-08-08 00:48:38 |         MASTER-OAFA | (09h 32m 25.05s , -50d 36m 50.2s) |   C |   180 | 17.2 |        
    7402 | 2021-08-08 00:57:16 |         MASTER-OAFA | (09h 32m 16.96s , -50d 36m 40.0s) |   C |   180 | 16.9 |        
    7921 | 2021-08-08 01:05:55 |         MASTER-OAFA | (09h 32m 16.80s , -50d 38m 40.1s) |   C |   180 | 16.7 |        
    8437 | 2021-08-08 01:14:31 |         MASTER-OAFA | (09h 32m 17.73s , -50d 36m 54.2s) |   C |   180 | 16.6 |        
    8956 | 2021-08-08 01:23:10 |         MASTER-OAFA | (09h 32m 20.07s , -50d 36m 39.2s) |   C |   180 | 16.1 |        
    9475 | 2021-08-08 01:31:49 |         MASTER-OAFA | (09h 32m 10.94s , -50d 36m 17.5s) |   C |   180 | 14.0 |        
   15602 | 2021-08-08 03:13:56 |         MASTER-SAAO | (09h 34m 22.59s , -51d 21m 56.9s) |   C |   180 | 17.5 |        
   15821 | 2021-08-08 03:18:35 |         MASTER-SAAO | (09h 34m 33.31s , -53d 49m 38.0s) |   C |    60 | 17.1 |        
   16826 | 2021-08-08 03:35:20 |         MASTER-SAAO | (09h 34m 39.31s , -53d 50m 28.1s) |   C |    60 | 17.2 |        
   16909 | 2021-08-08 03:36:42 |         MASTER-SAAO | (09h 46m 08.85s , -51d 56m 40.6s) |   C |    60 | 16.9 |        
   16988 | 2021-08-08 03:38:02 |         MASTER-SAAO | (09h 59m 07.64s , -51d 55m 13.5s) |   C |    60 | 16.7 |        
   17437 | 2021-08-08 03:44:31 |         MASTER-SAAO | (09h 34m 23.58s , -51d 22m 26.5s) |   C |   180 | 17.7 |        
   17885 | 2021-08-08 03:52:59 |         MASTER-SAAO | (09h 46m 06.87s , -51d 57m 03.5s) |   C |    60 | 17.0 |        
   17965 | 2021-08-08 03:54:19 |         MASTER-SAAO | (09h 59m 05.00s , -51d 55m 36.2s) |   C |    60 | 16.7 |        
   18104 | 2021-08-08 03:55:38 |         MASTER-SAAO | (09h 34m 20.01s , -51d 21m 47.3s) |   C |   180 | 17.4 |        
   18244 | 2021-08-08 03:58:58 |         MASTER-SAAO | (09h 46m 16.94s , -50d 04m 15.7s) |   C |    60 | 16.6 |        
   18324 | 2021-08-08 04:00:17 |         MASTER-SAAO | (09h 58m 41.44s , -50d 02m 00.5s) |   C |    60 | 16.9 |        
   18406 | 2021-08-08 04:01:39 |         MASTER-SAAO | (09h 46m 48.50s , -53d 50m 38.2s) |   C |    60 | 17.1 |        
   18485 | 2021-08-08 04:02:59 |         MASTER-SAAO | (10h 00m 16.63s , -53d 50m 40.7s) |   C |    60 | 17.0 |        
   18565 | 2021-08-08 04:04:19 |         MASTER-SAAO | (09h 46m 59.39s , -48d 09m 24.8s) |   C |    60 | 17.0 |        
   18645 | 2021-08-08 04:05:39 |         MASTER-SAAO | (09h 58m 52.45s , -48d 10m 02.7s) |   C |    60 | 17.0 |        
   18804 | 2021-08-08 04:08:18 |         MASTER-SAAO | (09h 34m 29.08s , -51d 58m 28.5s) |   C |    60 | 17.6 |        
   18884 | 2021-08-08 04:09:38 |         MASTER-SAAO | (09h 46m 13.20s , -51d 56m 52.7s) |   C |    60 | 17.3 |        
   18964 | 2021-08-08 04:10:57 |         MASTER-SAAO | (09h 59m 04.75s , -51d 56m 57.7s) |   C |    60 | 16.9 |        
   19188 | 2021-08-08 04:13:42 |         MASTER-SAAO | (09h 34m 13.12s , -51d 23m 10.8s) |   C |   180 | 17.6 |        
   19328 | 2021-08-08 04:17:01 |         MASTER-SAAO | (09h 35m 05.51s , -50d 04m 44.2s) |   C |    60 | 17.4 |        
   19407 | 2021-08-08 04:18:21 |         MASTER-SAAO | (09h 46m 14.37s , -50d 03m 01.1s) |   C |    60 | 16.7 |        
   19487 | 2021-08-08 04:19:41 |         MASTER-SAAO | (09h 58m 41.67s , -50d 03m 46.2s) |   C |    60 | 16.5 |        
   19567 | 2021-08-08 04:21:01 |         MASTER-SAAO | (09h 46m 47.61s , -53d 50m 55.3s) |   C |    60 | 16.4 |        
   19647 | 2021-08-08 04:22:21 |         MASTER-SAAO | (10h 00m 16.07s , -53d 51m 05.3s) |   C |    60 | 15.9 |        
   19727 | 2021-08-08 04:23:40 |         MASTER-SAAO | (09h 46m 53.28s , -48d 08m 45.4s) |   C |    60 | 15.6 |        
   19807 | 2021-08-08 04:25:01 |         MASTER-SAAO | (09h 58m 58.11s , -48d 09m 21.4s) |   C |    60 | 15.2 |        
   19967 | 2021-08-08 04:27:40 |         MASTER-SAAO | (09h 34m 31.21s , -51d 58m 46.9s) |   C |    60 | 16.7 |        
   20126 | 2021-08-08 04:30:20 |         MASTER-SAAO | (10h 10m 52.59s , -51d 56m 22.2s) |   C |    60 | 15.6 |        
   36434 | 2021-08-08 09:01:07 |         MASTER-OAFA | (09h 32m 14.87s , -50d 34m 40.0s) |   C |   180 | 15.9 |        
   37260 | 2021-08-08 09:15:53 |         MASTER-OAFA | (09h 32m 29.54s , -51d 10m 44.1s) |   C |    60 | 16.0 |        
   37693 | 2021-08-08 09:23:07 |         MASTER-OAFA | (09h 32m 28.40s , -53d 06m 13.3s) |   C |    60 | 15.9 |        
   38247 | 2021-08-08 09:31:20 |         MASTER-OAFA | (09h 32m 35.95s , -51d 58m 22.7s) |   C |   180 | 17.2 |        
   38503 | 2021-08-08 09:36:37 |         MASTER-OAFA | (09h 32m 38.63s , -52d 33m 43.4s) |   C |    60 | 16.8 |        
   38787 | 2021-08-08 09:41:21 |         MASTER-OAFA | (09h 44m 07.63s , -51d 10m 22.2s) |   C |    60 | 16.2 |        
   39118 | 2021-08-08 09:46:52 |         MASTER-OAFA | (09h 57m 24.77s , -52d 33m 35.3s) |   C |    60 | 16.6 |        
   39275 | 2021-08-08 09:48:29 |         MASTER-OAFA | (09h 32m 12.20s , -50d 35m 20.5s) |   C |   180 | 17.1 |        
   39526 | 2021-08-08 09:53:39 |         MASTER-OAFA | (09h 32m 32.30s , -51d 11m 11.4s) |   C |    60 | 17.0 |        
   39618 | 2021-08-08 09:55:12 |         MASTER-OAFA | (09h 44m 31.28s , -50d 41m 35.9s) |   C |    60 | 17.0 |        
   39710 | 2021-08-08 09:56:44 |         MASTER-OAFA | (09h 56m 41.80s , -49d 16m 04.1s) |   C |    60 | 16.2 |        
   39801 | 2021-08-08 09:58:15 |         MASTER-OAFA | (09h 44m 20.50s , -52d 35m 20.5s) |   C |    60 | 17.0 |        
   39896 | 2021-08-08 09:59:50 |         MASTER-OAFA | (09h 44m 38.63s , -53d 05m 04.5s) |   C |    60 | 16.7 |        
   39990 | 2021-08-08 10:01:23 |         MASTER-OAFA | (09h 58m 22.75s , -54d 27m 19.2s) |   C |    60 | 16.7 |        
   40089 | 2021-08-08 10:03:03 |         MASTER-OAFA | (09h 57m 08.55s , -51d 10m 44.0s) |   C |    60 | 16.3 |        
   40182 | 2021-08-08 10:04:36 |         MASTER-OAFA | (09h 45m 14.79s , -48d 47m 16.6s) |   C |    60 | 16.9 |        
   40321 | 2021-08-08 10:05:55 |         MASTER-OAFA | (09h 32m 27.58s , -51d 58m 23.7s) |   C |   180 | 17.5 |        
   40567 | 2021-08-08 10:11:01 |         MASTER-OAFA | (09h 44m 30.03s , -50d 39m 59.6s) |   C |    60 | 17.0 |        
   40667 | 2021-08-08 10:12:41 |         MASTER-OAFA | (09h 56m 40.04s , -49d 16m 37.4s) |   C |    60 | 16.3 |        
   40760 | 2021-08-08 10:14:14 |         MASTER-OAFA | (09h 44m 17.53s , -52d 33m 42.3s) |   C |    60 | 16.9 |        
   40840 | 2021-08-08 10:15:34 |         MASTER-OAFA | (09h 44m 55.57s , -54d 28m 38.8s) |   C |    60 | 16.7 |        
   40935 | 2021-08-08 10:17:09 |         MASTER-OAFA | (09h 58m 10.67s , -53d 05m 50.8s) |   C |    60 | 16.1 |        
   41027 | 2021-08-08 10:18:41 |         MASTER-OAFA | (09h 57m 20.91s , -52d 35m 07.3s) |   C |    60 | 16.3 |        
   41106 | 2021-08-08 10:20:00 |         MASTER-OAFA | (09h 45m 10.78s , -48d 45m 59.6s) |   C |    60 | 16.4 |        
   41325 | 2021-08-08 10:22:39 |         MASTER-OAFA | (09h 32m 24.09s , -51d 59m 06.7s) |   C |   180 | 16.9 |        
   41465 | 2021-08-08 10:25:58 |         MASTER-OAFA | (09h 33m 12.05s , -50d 39m 58.8s) |   C |    60 | 16.5 |        
   41655 | 2021-08-08 10:29:09 |         MASTER-OAFA | (09h 44m 23.55s , -50d 41m 45.9s) |   C |    60 | 15.8 |        
   41735 | 2021-08-08 10:30:29 |         MASTER-OAFA | (09h 56m 57.34s , -50d 40m 58.7s) |   C |    60 | 15.4 |        
   41814 | 2021-08-08 10:31:48 |         MASTER-OAFA | (09h 44m 53.43s , -54d 28m 10.9s) |   C |    60 | 15.3 |        
   41894 | 2021-08-08 10:33:08 |         MASTER-OAFA | (09h 58m 26.21s , -54d 29m 20.7s) |   C |    60 | 15.1 |        
   41994 | 2021-08-08 10:34:47 |         MASTER-OAFA | (10h 07m 51.68s , -49d 16m 28.7s) |   C |    60 | 14.7 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 4780
TYPE = 35
DAYS = 0


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB 210807C ( Fermi GBM team, GCN 30609) errorbox  114 sec after notice time and 206 sec after trigger time at 2021-08-07 22:58:50 UT, with upper limit up to  18.6 mag. Observations started at twilight.  The observations began at zenith distance = 64 deg. The sun  altitude  is -12.1 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the FERMI GRB 210807C errorbox  15419 sec after notice time and 15511 sec after trigger time at 2021-08-08 03:13:56 UT, with upper limit up to  17.5 mag. The observations began at zenith distance = 81 deg. The sun  altitude  is -27.5 deg. 

The galactic latitude b =  2 deg., longitude l = 277 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683879

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

     222 | 2021-08-07 22:58:50 |         MASTER-OAFA | (09h 51m 36.60s , -48d 08m 16.7s) |   C |    30 | 16.4 |        
     285 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.94s , -50d 38m 28.4s) |   C |    20 | 16.6 |        
     320 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.95s , -50d 38m 28.4s) |   C |    90 | 17.3 |  Coadd 
     615 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.93s , -50d 38m 28.5s) |   C |   680 | 18.3 |  Coadd 
     330 | 2021-08-07 23:00:39 |         MASTER-OAFA | (09h 32m 26.75s , -50d 36m 58.8s) |   C |    30 | 16.8 |        
     384 | 2021-08-07 23:01:28 |         MASTER-OAFA | (09h 32m 26.54s , -50d 38m 17.9s) |   C |    40 | 17.0 |        
     449 | 2021-08-07 23:02:28 |         MASTER-OAFA | (09h 32m 28.68s , -50d 37m 04.2s) |   C |    50 | 17.1 |        
     524 | 2021-08-07 23:02:28 |         MASTER-OAFA | (09h 32m 28.68s , -50d 37m 04.3s) |   C |   200 | 17.8 |  Coadd 
     528 | 2021-08-07 23:03:37 |         MASTER-OAFA | (09h 32m 22.55s , -50d 37m 43.5s) |   C |    70 | 17.3 |        
     622 | 2021-08-07 23:05:06 |         MASTER-OAFA | (09h 32m 22.46s , -50d 36m 42.4s) |   C |    80 | 17.5 |        
     732 | 2021-08-07 23:06:46 |         MASTER-OAFA | (09h 32m 28.12s , -50d 37m 41.4s) |   C |   100 | 17.7 |        
     877 | 2021-08-07 23:06:46 |         MASTER-OAFA | (09h 32m 28.14s , -50d 37m 41.5s) |   C |   390 | 18.3 |  Coadd 
     866 | 2021-08-07 23:08:45 |         MASTER-OAFA | (09h 32m 22.16s , -50d 38m 40.7s) |   C |   130 | 17.9 |        
    1030 | 2021-08-07 23:11:14 |         MASTER-OAFA | (09h 32m 29.66s , -50d 38m 09.7s) |   C |   160 | 18.0 |        
    1220 | 2021-08-07 23:14:14 |         MASTER-OAFA | (09h 32m 25.67s , -50d 37m 04.8s) |   C |   180 | 18.2 |        
    1400 | 2021-08-07 23:14:14 |         MASTER-OAFA | (09h 32m 25.67s , -50d 37m 04.8s) |   C |   540 | 18.6 |  Coadd 
    1420 | 2021-08-07 23:17:34 |         MASTER-OAFA | (09h 32m 25.60s , -50d 38m 34.9s) |   C |   180 | 18.2 |        
    1619 | 2021-08-07 23:20:53 |         MASTER-OAFA | (09h 32m 28.21s , -50d 36m 47.5s) |   C |   180 | 18.3 |        
    1819 | 2021-08-07 23:24:13 |         MASTER-OAFA | (09h 32m 22.92s , -50d 37m 36.2s) |   C |   180 | 18.2 |        
    1999 | 2021-08-07 23:24:13 |         MASTER-OAFA | (09h 32m 22.92s , -50d 37m 36.2s) |   C |   540 | 18.6 |  Coadd 
    2019 | 2021-08-07 23:27:32 |         MASTER-OAFA | (09h 32m 22.25s , -50d 36m 35.5s) |   C |   180 | 18.3 |        
    2218 | 2021-08-07 23:30:52 |         MASTER-OAFA | (09h 32m 28.88s , -50d 37m 34.8s) |   C |   180 | 18.3 |        
    2417 | 2021-08-07 23:34:11 |         MASTER-OAFA | (09h 32m 22.28s , -50d 38m 34.3s) |   C |   180 | 18.2 |        
    2597 | 2021-08-07 23:34:11 |         MASTER-OAFA | (09h 32m 22.29s , -50d 38m 34.3s) |   C |   540 | 18.6 |  Coadd 
    2617 | 2021-08-07 23:37:31 |         MASTER-OAFA | (09h 32m 29.11s , -50d 38m 18.2s) |   C |   180 | 18.2 |        
    2816 | 2021-08-07 23:40:50 |         MASTER-OAFA | (09h 32m 25.11s , -50d 36m 58.5s) |   C |   180 | 18.3 |        
    3016 | 2021-08-07 23:44:09 |         MASTER-OAFA | (09h 32m 25.02s , -50d 38m 21.0s) |   C |   180 | 18.3 |        
    3196 | 2021-08-07 23:44:09 |         MASTER-OAFA | (09h 32m 25.02s , -50d 38m 21.0s) |   C |   540 | 18.5 |  Coadd 
    3215 | 2021-08-07 23:47:29 |         MASTER-OAFA | (09h 32m 28.03s , -50d 36m 52.9s) |   C |   180 | 18.2 |        
    3415 | 2021-08-07 23:50:49 |         MASTER-OAFA | (09h 32m 21.71s , -50d 37m 32.1s) |   C |   180 | 18.2 |        
    3614 | 2021-08-07 23:54:08 |         MASTER-OAFA | (09h 32m 21.47s , -50d 36m 31.4s) |   C |   180 | 18.1 |        
    3794 | 2021-08-07 23:54:08 |         MASTER-OAFA | (09h 32m 21.47s , -50d 36m 31.5s) |   C |   540 | 18.5 |  Coadd 
    3814 | 2021-08-07 23:57:27 |         MASTER-OAFA | (09h 32m 27.57s , -50d 37m 32.7s) |   C |   180 | 17.9 |        
    4013 | 2021-08-08 00:00:47 |         MASTER-OAFA | (09h 32m 20.35s , -50d 38m 40.0s) |   C |   180 | 18.1 |        
    4212 | 2021-08-08 00:04:06 |         MASTER-OAFA | (09h 32m 27.14s , -50d 38m 22.6s) |   C |   180 | 18.1 |        
    4392 | 2021-08-08 00:04:06 |         MASTER-OAFA | (09h 32m 27.14s , -50d 38m 22.6s) |   C |   540 | 18.5 |  Coadd 
    4412 | 2021-08-08 00:07:26 |         MASTER-OAFA | (09h 32m 23.81s , -50d 36m 49.8s) |   C |   180 | 18.1 |        
    4612 | 2021-08-08 00:10:46 |         MASTER-OAFA | (09h 32m 23.52s , -50d 38m 37.4s) |   C |   180 | 18.1 |        
    4811 | 2021-08-08 00:14:05 |         MASTER-OAFA | (09h 32m 25.80s , -50d 36m 50.7s) |   C |   180 | 18.1 |        
    5330 | 2021-08-08 00:22:44 |         MASTER-OAFA | (09h 32m 23.46s , -50d 36m 07.4s) |   C |   180 | 17.6 |        
    5847 | 2021-08-08 00:31:20 |         MASTER-OAFA | (09h 32m 22.91s , -50d 38m 05.8s) |   C |   180 | 17.5 |        
    6366 | 2021-08-08 00:40:00 |         MASTER-OAFA | (09h 32m 21.93s , -50d 36m 57.0s) |   C |   180 | 17.2 |        
    6884 | 2021-08-08 00:48:38 |         MASTER-OAFA | (09h 32m 25.05s , -50d 36m 50.2s) |   C |   180 | 17.2 |        
    7402 | 2021-08-08 00:57:16 |         MASTER-OAFA | (09h 32m 16.96s , -50d 36m 40.0s) |   C |   180 | 16.9 |        
    7921 | 2021-08-08 01:05:55 |         MASTER-OAFA | (09h 32m 16.80s , -50d 38m 40.1s) |   C |   180 | 16.7 |        
    8437 | 2021-08-08 01:14:31 |         MASTER-OAFA | (09h 32m 17.73s , -50d 36m 54.2s) |   C |   180 | 16.6 |        
    8956 | 2021-08-08 01:23:10 |         MASTER-OAFA | (09h 32m 20.07s , -50d 36m 39.2s) |   C |   180 | 16.1 |        
    9475 | 2021-08-08 01:31:49 |         MASTER-OAFA | (09h 32m 10.94s , -50d 36m 17.5s) |   C |   180 | 14.0 |        
   15602 | 2021-08-08 03:13:56 |         MASTER-SAAO | (09h 34m 22.59s , -51d 21m 56.9s) |   C |   180 | 17.5 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 4779
TYPE = 35
DAYS = 0


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB 210807C ( Fermi GBM team, GCN 30609) errorbox  114 sec after notice time and 206 sec after trigger time at 2021-08-07 22:58:50 UT, with upper limit up to  18.6 mag. Observations started at twilight.  The observations began at zenith distance = 64 deg. The sun  altitude  is -12.1 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the FERMI GRB 210807C errorbox  15419 sec after notice time and 15511 sec after trigger time at 2021-08-08 03:13:56 UT, with upper limit up to  17.5 mag. The observations began at zenith distance = 81 deg. The sun  altitude  is -27.5 deg. 

The galactic latitude b =  2 deg., longitude l = 277 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683879

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

     222 | 2021-08-07 22:58:50 |         MASTER-OAFA | (09h 51m 36.60s , -48d 08m 16.7s) |   C |    30 | 16.4 |        
     285 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.94s , -50d 38m 28.4s) |   C |    20 | 16.6 |        
     320 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.95s , -50d 38m 28.4s) |   C |    90 | 17.3 |  Coadd 
     615 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.93s , -50d 38m 28.5s) |   C |   680 | 18.3 |  Coadd 
     330 | 2021-08-07 23:00:39 |         MASTER-OAFA | (09h 32m 26.75s , -50d 36m 58.8s) |   C |    30 | 16.8 |        
     384 | 2021-08-07 23:01:28 |         MASTER-OAFA | (09h 32m 26.54s , -50d 38m 17.9s) |   C |    40 | 17.0 |        
     449 | 2021-08-07 23:02:28 |         MASTER-OAFA | (09h 32m 28.68s , -50d 37m 04.2s) |   C |    50 | 17.1 |        
     524 | 2021-08-07 23:02:28 |         MASTER-OAFA | (09h 32m 28.68s , -50d 37m 04.3s) |   C |   200 | 17.8 |  Coadd 
     528 | 2021-08-07 23:03:37 |         MASTER-OAFA | (09h 32m 22.55s , -50d 37m 43.5s) |   C |    70 | 17.3 |        
     622 | 2021-08-07 23:05:06 |         MASTER-OAFA | (09h 32m 22.46s , -50d 36m 42.4s) |   C |    80 | 17.5 |        
     732 | 2021-08-07 23:06:46 |         MASTER-OAFA | (09h 32m 28.12s , -50d 37m 41.4s) |   C |   100 | 17.7 |        
     877 | 2021-08-07 23:06:46 |         MASTER-OAFA | (09h 32m 28.14s , -50d 37m 41.5s) |   C |   390 | 18.3 |  Coadd 
     866 | 2021-08-07 23:08:45 |         MASTER-OAFA | (09h 32m 22.16s , -50d 38m 40.7s) |   C |   130 | 17.9 |        
    1030 | 2021-08-07 23:11:14 |         MASTER-OAFA | (09h 32m 29.66s , -50d 38m 09.7s) |   C |   160 | 18.0 |        
    1220 | 2021-08-07 23:14:14 |         MASTER-OAFA | (09h 32m 25.67s , -50d 37m 04.8s) |   C |   180 | 18.2 |        
    1400 | 2021-08-07 23:14:14 |         MASTER-OAFA | (09h 32m 25.67s , -50d 37m 04.8s) |   C |   540 | 18.6 |  Coadd 
    1420 | 2021-08-07 23:17:34 |         MASTER-OAFA | (09h 32m 25.60s , -50d 38m 34.9s) |   C |   180 | 18.2 |        
    1619 | 2021-08-07 23:20:53 |         MASTER-OAFA | (09h 32m 28.21s , -50d 36m 47.5s) |   C |   180 | 18.3 |        
    1819 | 2021-08-07 23:24:13 |         MASTER-OAFA | (09h 32m 22.92s , -50d 37m 36.2s) |   C |   180 | 18.2 |        
    1999 | 2021-08-07 23:24:13 |         MASTER-OAFA | (09h 32m 22.92s , -50d 37m 36.2s) |   C |   540 | 18.6 |  Coadd 
    2019 | 2021-08-07 23:27:32 |         MASTER-OAFA | (09h 32m 22.25s , -50d 36m 35.5s) |   C |   180 | 18.3 |        
    2218 | 2021-08-07 23:30:52 |         MASTER-OAFA | (09h 32m 28.88s , -50d 37m 34.8s) |   C |   180 | 18.3 |        
    2417 | 2021-08-07 23:34:11 |         MASTER-OAFA | (09h 32m 22.28s , -50d 38m 34.3s) |   C |   180 | 18.2 |        
    2597 | 2021-08-07 23:34:11 |         MASTER-OAFA | (09h 32m 22.29s , -50d 38m 34.3s) |   C |   540 | 18.6 |  Coadd 
    2617 | 2021-08-07 23:37:31 |         MASTER-OAFA | (09h 32m 29.11s , -50d 38m 18.2s) |   C |   180 | 18.2 |        
    2816 | 2021-08-07 23:40:50 |         MASTER-OAFA | (09h 32m 25.11s , -50d 36m 58.5s) |   C |   180 | 18.3 |        
    3016 | 2021-08-07 23:44:09 |         MASTER-OAFA | (09h 32m 25.02s , -50d 38m 21.0s) |   C |   180 | 18.3 |        
    3196 | 2021-08-07 23:44:09 |         MASTER-OAFA | (09h 32m 25.02s , -50d 38m 21.0s) |   C |   540 | 18.5 |  Coadd 
    3215 | 2021-08-07 23:47:29 |         MASTER-OAFA | (09h 32m 28.03s , -50d 36m 52.9s) |   C |   180 | 18.2 |        
    3415 | 2021-08-07 23:50:49 |         MASTER-OAFA | (09h 32m 21.71s , -50d 37m 32.1s) |   C |   180 | 18.2 |        
    3614 | 2021-08-07 23:54:08 |         MASTER-OAFA | (09h 32m 21.47s , -50d 36m 31.4s) |   C |   180 | 18.1 |        
    3794 | 2021-08-07 23:54:08 |         MASTER-OAFA | (09h 32m 21.47s , -50d 36m 31.5s) |   C |   540 | 18.5 |  Coadd 
    3814 | 2021-08-07 23:57:27 |         MASTER-OAFA | (09h 32m 27.57s , -50d 37m 32.7s) |   C |   180 | 17.9 |        
    4013 | 2021-08-08 00:00:47 |         MASTER-OAFA | (09h 32m 20.35s , -50d 38m 40.0s) |   C |   180 | 18.1 |        
    4212 | 2021-08-08 00:04:06 |         MASTER-OAFA | (09h 32m 27.14s , -50d 38m 22.6s) |   C |   180 | 18.1 |        
    4392 | 2021-08-08 00:04:06 |         MASTER-OAFA | (09h 32m 27.14s , -50d 38m 22.6s) |   C |   540 | 18.5 |  Coadd 
    4412 | 2021-08-08 00:07:26 |         MASTER-OAFA | (09h 32m 23.81s , -50d 36m 49.8s) |   C |   180 | 18.1 |        
    4612 | 2021-08-08 00:10:46 |         MASTER-OAFA | (09h 32m 23.52s , -50d 38m 37.4s) |   C |   180 | 18.1 |        
    4811 | 2021-08-08 00:14:05 |         MASTER-OAFA | (09h 32m 25.80s , -50d 36m 50.7s) |   C |   180 | 18.1 |        
    5330 | 2021-08-08 00:22:44 |         MASTER-OAFA | (09h 32m 23.46s , -50d 36m 07.4s) |   C |   180 | 17.6 |        
    5847 | 2021-08-08 00:31:20 |         MASTER-OAFA | (09h 32m 22.91s , -50d 38m 05.8s) |   C |   180 | 17.5 |        
    6366 | 2021-08-08 00:40:00 |         MASTER-OAFA | (09h 32m 21.93s , -50d 36m 57.0s) |   C |   180 | 17.2 |        
    6884 | 2021-08-08 00:48:38 |         MASTER-OAFA | (09h 32m 25.05s , -50d 36m 50.2s) |   C |   180 | 17.2 |        
    7402 | 2021-08-08 00:57:16 |         MASTER-OAFA | (09h 32m 16.96s , -50d 36m 40.0s) |   C |   180 | 16.9 |        
    7921 | 2021-08-08 01:05:55 |         MASTER-OAFA | (09h 32m 16.80s , -50d 38m 40.1s) |   C |   180 | 16.7 |        
    8437 | 2021-08-08 01:14:31 |         MASTER-OAFA | (09h 32m 17.73s , -50d 36m 54.2s) |   C |   180 | 16.6 |        
    8956 | 2021-08-08 01:23:10 |         MASTER-OAFA | (09h 32m 20.07s , -50d 36m 39.2s) |   C |   180 | 16.1 |        
    9475 | 2021-08-08 01:31:49 |         MASTER-OAFA | (09h 32m 10.94s , -50d 36m 17.5s) |   C |   180 | 14.0 |        
   15602 | 2021-08-08 03:13:56 |         MASTER-SAAO | (09h 34m 22.59s , -51d 21m 56.9s) |   C |   180 | 17.5 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
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  ID = 4778
TYPE = 34
DAYS = 0


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB 210807C ( Fermi GBM team, GCN 30609) errorbox  114 sec after notice time and 206 sec after trigger time at 2021-08-07 22:58:50 UT, with upper limit up to  18.6 mag. Observations started at twilight.  The observations began at zenith distance = 64 deg. The sun  altitude  is -12.1 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the FERMI GRB 210807C errorbox  15419 sec after notice time and 15511 sec after trigger time at 2021-08-08 03:13:56 UT, with upper limit up to  17.5 mag. The observations began at zenith distance = 81 deg. The sun  altitude  is -27.5 deg. 

The galactic latitude b =  2 deg., longitude l = 277 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1683879

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

     222 | 2021-08-07 22:58:50 |         MASTER-OAFA | (09h 51m 36.60s , -48d 08m 16.7s) |   C |    30 | 16.4 |        
     285 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.94s , -50d 38m 28.4s) |   C |    20 | 16.6 |        
     320 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.95s , -50d 38m 28.4s) |   C |    90 | 17.3 |  Coadd 
     615 | 2021-08-07 22:59:59 |         MASTER-OAFA | (09h 32m 30.93s , -50d 38m 28.5s) |   C |   680 | 18.3 |  Coadd 
     330 | 2021-08-07 23:00:39 |         MASTER-OAFA | (09h 32m 26.75s , -50d 36m 58.8s) |   C |    30 | 16.8 |        
     384 | 2021-08-07 23:01:28 |         MASTER-OAFA | (09h 32m 26.54s , -50d 38m 17.9s) |   C |    40 | 17.0 |        
     449 | 2021-08-07 23:02:28 |         MASTER-OAFA | (09h 32m 28.68s , -50d 37m 04.2s) |   C |    50 | 17.1 |        
     524 | 2021-08-07 23:02:28 |         MASTER-OAFA | (09h 32m 28.68s , -50d 37m 04.3s) |   C |   200 | 17.8 |  Coadd 
     528 | 2021-08-07 23:03:37 |         MASTER-OAFA | (09h 32m 22.55s , -50d 37m 43.5s) |   C |    70 | 17.3 |        
     622 | 2021-08-07 23:05:06 |         MASTER-OAFA | (09h 32m 22.46s , -50d 36m 42.4s) |   C |    80 | 17.5 |        
     732 | 2021-08-07 23:06:46 |         MASTER-OAFA | (09h 32m 28.12s , -50d 37m 41.4s) |   C |   100 | 17.7 |        
     877 | 2021-08-07 23:06:46 |         MASTER-OAFA | (09h 32m 28.14s , -50d 37m 41.5s) |   C |   390 | 18.3 |  Coadd 
     866 | 2021-08-07 23:08:45 |         MASTER-OAFA | (09h 32m 22.16s , -50d 38m 40.7s) |   C |   130 | 17.9 |        
    1030 | 2021-08-07 23:11:14 |         MASTER-OAFA | (09h 32m 29.66s , -50d 38m 09.7s) |   C |   160 | 18.0 |        
    1220 | 2021-08-07 23:14:14 |         MASTER-OAFA | (09h 32m 25.67s , -50d 37m 04.8s) |   C |   180 | 18.2 |        
    1400 | 2021-08-07 23:14:14 |         MASTER-OAFA | (09h 32m 25.67s , -50d 37m 04.8s) |   C |   540 | 18.6 |  Coadd 
    1420 | 2021-08-07 23:17:34 |         MASTER-OAFA | (09h 32m 25.60s , -50d 38m 34.9s) |   C |   180 | 18.2 |        
    1619 | 2021-08-07 23:20:53 |         MASTER-OAFA | (09h 32m 28.21s , -50d 36m 47.5s) |   C |   180 | 18.3 |        
    1819 | 2021-08-07 23:24:13 |         MASTER-OAFA | (09h 32m 22.92s , -50d 37m 36.2s) |   C |   180 | 18.2 |        
    1999 | 2021-08-07 23:24:13 |         MASTER-OAFA | (09h 32m 22.92s , -50d 37m 36.2s) |   C |   540 | 18.6 |  Coadd 
    2019 | 2021-08-07 23:27:32 |         MASTER-OAFA | (09h 32m 22.25s , -50d 36m 35.5s) |   C |   180 | 18.3 |        
    2218 | 2021-08-07 23:30:52 |         MASTER-OAFA | (09h 32m 28.88s , -50d 37m 34.8s) |   C |   180 | 18.3 |        
    2417 | 2021-08-07 23:34:11 |         MASTER-OAFA | (09h 32m 22.28s , -50d 38m 34.3s) |   C |   180 | 18.2 |        
    2597 | 2021-08-07 23:34:11 |         MASTER-OAFA | (09h 32m 22.29s , -50d 38m 34.3s) |   C |   540 | 18.6 |  Coadd 
    2617 | 2021-08-07 23:37:31 |         MASTER-OAFA | (09h 32m 29.11s , -50d 38m 18.2s) |   C |   180 | 18.2 |        
    2816 | 2021-08-07 23:40:50 |         MASTER-OAFA | (09h 32m 25.11s , -50d 36m 58.5s) |   C |   180 | 18.3 |        
    3016 | 2021-08-07 23:44:09 |         MASTER-OAFA | (09h 32m 25.02s , -50d 38m 21.0s) |   C |   180 | 18.3 |        
    3196 | 2021-08-07 23:44:09 |         MASTER-OAFA | (09h 32m 25.02s , -50d 38m 21.0s) |   C |   540 | 18.5 |  Coadd 
    3215 | 2021-08-07 23:47:29 |         MASTER-OAFA | (09h 32m 28.03s , -50d 36m 52.9s) |   C |   180 | 18.2 |        
    3415 | 2021-08-07 23:50:49 |         MASTER-OAFA | (09h 32m 21.71s , -50d 37m 32.1s) |   C |   180 | 18.2 |        
    3614 | 2021-08-07 23:54:08 |         MASTER-OAFA | (09h 32m 21.47s , -50d 36m 31.4s) |   C |   180 | 18.1 |        
    3794 | 2021-08-07 23:54:08 |         MASTER-OAFA | (09h 32m 21.47s , -50d 36m 31.5s) |   C |   540 | 18.5 |  Coadd 
    3814 | 2021-08-07 23:57:27 |         MASTER-OAFA | (09h 32m 27.57s , -50d 37m 32.7s) |   C |   180 | 17.9 |        
    4013 | 2021-08-08 00:00:47 |         MASTER-OAFA | (09h 32m 20.35s , -50d 38m 40.0s) |   C |   180 | 18.1 |        
    4212 | 2021-08-08 00:04:06 |         MASTER-OAFA | (09h 32m 27.14s , -50d 38m 22.6s) |   C |   180 | 18.1 |        
    4392 | 2021-08-08 00:04:06 |         MASTER-OAFA | (09h 32m 27.14s , -50d 38m 22.6s) |   C |   540 | 18.5 |  Coadd 
    4412 | 2021-08-08 00:07:26 |         MASTER-OAFA | (09h 32m 23.81s , -50d 36m 49.8s) |   C |   180 | 18.1 |        
    4612 | 2021-08-08 00:10:46 |         MASTER-OAFA | (09h 32m 23.52s , -50d 38m 37.4s) |   C |   180 | 18.1 |        
    4811 | 2021-08-08 00:14:05 |         MASTER-OAFA | (09h 32m 25.80s , -50d 36m 50.7s) |   C |   180 | 18.1 |        
    5330 | 2021-08-08 00:22:44 |         MASTER-OAFA | (09h 32m 23.46s , -50d 36m 07.4s) |   C |   180 | 17.6 |        
    5847 | 2021-08-08 00:31:20 |         MASTER-OAFA | (09h 32m 22.91s , -50d 38m 05.8s) |   C |   180 | 17.5 |        
    6366 | 2021-08-08 00:40:00 |         MASTER-OAFA | (09h 32m 21.93s , -50d 36m 57.0s) |   C |   180 | 17.2 |        
    6884 | 2021-08-08 00:48:38 |         MASTER-OAFA | (09h 32m 25.05s , -50d 36m 50.2s) |   C |   180 | 17.2 |        
    7402 | 2021-08-08 00:57:16 |         MASTER-OAFA | (09h 32m 16.96s , -50d 36m 40.0s) |   C |   180 | 16.9 |        
    7921 | 2021-08-08 01:05:55 |         MASTER-OAFA | (09h 32m 16.80s , -50d 38m 40.1s) |   C |   180 | 16.7 |        
    8437 | 2021-08-08 01:14:31 |         MASTER-OAFA | (09h 32m 17.73s , -50d 36m 54.2s) |   C |   180 | 16.6 |        
    8956 | 2021-08-08 01:23:10 |         MASTER-OAFA | (09h 32m 20.07s , -50d 36m 39.2s) |   C |   180 | 16.1 |        
    9475 | 2021-08-08 01:31:49 |         MASTER-OAFA | (09h 32m 10.94s , -50d 36m 17.5s) |   C |   180 | 14.0 |        
   15602 | 2021-08-08 03:13:56 |         MASTER-SAAO | (09h 34m 22.59s , -51d 21m 56.9s) |   C |   180 | 17.5 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.

MASTER, 2002-2025