MASTER Net MASTER Database: GRB210822.27 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 GRB210822.27
Trignum 651306769
Trigger time 2021-08-22 06:32:44.58
Notice time 2021-08-22 12:27:39.208655
Coord, eb (22h 53m 48.00s , -46d 18m 00.0s) , 2.08
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You are viewing outdated information, relevant error box is here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
2258147 2023-08-22 18:19:44.601135 22h 53m 48.00s -46d 18m 00.0s FERMI 2.08 retraction 651306769 1 4044 retraction
1697122 2021-08-22 12:27:39.208655 22h 53m 48.00s -46d 18m 00.0s FERMI 2.08 alert 651306769 14 115 alert

DAYS:

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

Synchronous WFC images
Distance datetime coord2000 observatory camera links
Errorbox center visibility at MASTER facilities
trigger notice notice+1hr now

2021-08-22 06:32:44 (JD 2459448.772731)

Siderial time 7.106345 h

Ra 22:53:48.00 Dec -46:18:00.00
(343.450000d, -46.300000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -67.87 Azimuth: 272.40

Sun: Altitude: 36.69 Azimuth: 60.07

Moon: Altitude: -40.65 Azimuth: 245.36

Tunka

Object: Altitude: -82.13 Azimuth: 228.94

Sun: Altitude: 46.58 Azimuth: 30.40

Moon: Altitude: -51.51 Azimuth: 214.83

Kislovodsk

Object: Altitude: -53.86 Azimuth: 67.28

Sun: Altitude: 43.25 Azimuth: 300.80

Moon: Altitude: -48.17 Azimuth: 116.62

Tavrida

Object: Altitude: -48.66 Azimuth: 65.50

Sun: Altitude: 37.37 Azimuth: 293.25

Moon: Altitude: -42.18 Azimuth: 109.20

SAAO

Object: Altitude: 12.89 Azimuth: 42.85

Sun: Altitude: 16.61 Azimuth: 243.79

Moon: Altitude: -13.76 Azimuth: 58.65

IAC

Object: Altitude: -7.18 Azimuth: 40.55

Sun: Altitude: -1.97 Azimuth: 255.48

Moon: Altitude: -1.68 Azimuth: 71.07

Argentina

Object: Altitude: 70.88 Azimuth: 36.05

Sun: Altitude: -57.07 Azimuth: 301.01

Moon: Altitude: 59.73 Azimuth: 111.33

Mexico

Object: Altitude: 9.45 Azimuth: 342.88

Sun: Altitude: -45.47 Azimuth: 162.22

Moon: Altitude: 40.27 Azimuth: 345.46

Ural

Object: Altitude: -66.17 Azimuth: 101.69

Sun: Altitude: 41.51 Azimuth: 329.69

Moon: Altitude: -47.19 Azimuth: 148.79

Vostryakovo

Object: Altitude: -54.16 Azimuth: 80.34

Sun: Altitude: 34.42 Azimuth: 303.81

Moon: Altitude: -39.81 Azimuth: 121.43

Gal. latitude: -60.483615 Gal. longitude: 345.498496

Dist. to Sun: 143.969153

Dist. to Moon: 30.906872

Moon coord.: (330.174231 d, -17.418409 d)

Sun coord.: (151.227819 d, 11.790229 d)

Lunar disk: 0.997527

Lunar phase: 5.701093

Lunar bright limb: 190.417970

No SN in this field

2021-08-22 12:27:39 (JD 2459449.019201)

Siderial time 13.037818 h

Ra 22:53:48.00 Dec -46:18:00.00
(343.450000d, -46.300000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -18.83 Azimuth: 321.75

Sun: Altitude: -16.14 Azimuth: 132.81

Moon: Altitude: 11.19 Azimuth: 313.31

Tunka

Object: Altitude: -30.80 Azimuth: 307.13

Sun: Altitude: -2.48 Azimuth: 112.55

Moon: Altitude: -2.37 Azimuth: 293.65

Kislovodsk

Object: Altitude: -63.95 Azimuth: 288.71

Sun: Altitude: 37.17 Azimuth: 68.08

Moon: Altitude: -41.82 Azimuth: 250.39

Tavrida

Object: Altitude: -70.07 Azimuth: 284.68

Sun: Altitude: 42.20 Azimuth: 59.16

Moon: Altitude: -46.97 Azimuth: 241.12

SAAO

Object: Altitude: -10.11 Azimuth: 349.32

Sun: Altitude: 38.77 Azimuth: 144.82

Moon: Altitude: -35.65 Azimuth: 329.69

IAC

Object: Altitude: -65.06 Azimuth: 37.88

Sun: Altitude: 70.95 Azimuth: 328.55

Moon: Altitude: -73.64 Azimuth: 134.73

Argentina

Object: Altitude: 13.14 Azimuth: 43.21

Sun: Altitude: 15.85 Azimuth: 244.90

Moon: Altitude: -11.48 Azimuth: 62.45

Mexico

Object: Altitude: -6.58 Azimuth: 38.73

Sun: Altitude: -5.55 Azimuth: 252.75

Moon: Altitude: 4.63 Azimuth: 67.85

Ural

Object: Altitude: -55.82 Azimuth: 275.41

Sun: Altitude: 22.75 Azimuth: 75.99

Moon: Altitude: -27.65 Azimuth: 256.93

Vostryakovo

Object: Altitude: -67.93 Azimuth: 259.29

Sun: Altitude: 34.41 Azimuth: 55.99

Moon: Altitude: -39.36 Azimuth: 236.65

Gal. latitude: -60.483615 Gal. longitude: 345.498496

Dist. to Sun: 143.943613

Dist. to Moon: 31.149445

Moon coord.: (333.471413 d, -16.280273 d)

Sun coord.: (151.455074 d, 11.707334 d)

Lunar disk: 0.998129

Lunar phase: 4.958148

Lunar bright limb: 156.556962

No SN in this field

2021-08-22 13:27:39 (JD 2459449.060868)

Siderial time 14.040556 h

Ra 22:53:48.00 Dec -46:18:00.00
(343.450000d, -46.300000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -13.51 Azimuth: 331.03

Sun: Altitude: -22.33 Azimuth: 146.94

Moon: Altitude: 17.34 Azimuth: 326.20

Tunka

Object: Altitude: -23.83 Azimuth: 315.79

Sun: Altitude: -10.61 Azimuth: 124.87

Moon: Altitude: 5.59 Azimuth: 305.07

Kislovodsk

Object: Altitude: -53.78 Azimuth: 292.76

Sun: Altitude: 26.75 Azimuth: 80.32

Moon: Altitude: -31.53 Azimuth: 262.11

Tavrida

Object: Altitude: -59.83 Azimuth: 288.71

Sun: Altitude: 32.45 Azimuth: 73.04

Moon: Altitude: -37.30 Azimuth: 254.67

SAAO

Object: Altitude: -6.68 Azimuth: 339.42

Sun: Altitude: 30.20 Azimuth: 130.30

Moon: Altitude: -28.38 Azimuth: 315.68

IAC

Object: Altitude: -71.18 Azimuth: 15.07

Sun: Altitude: 72.75 Azimuth: 16.68

Moon: Altitude: -77.57 Azimuth: 191.04

Argentina

Object: Altitude: 4.91 Azimuth: 36.81

Sun: Altitude: 26.87 Azimuth: 234.45

Moon: Altitude: -22.02 Azimuth: 52.95

Mexico

Object: Altitude: -15.16 Azimuth: 44.67

Sun: Altitude: 6.94 Azimuth: 260.50

Moon: Altitude: -7.04 Azimuth: 75.43

Ural

Object: Altitude: -47.80 Azimuth: 286.11

Sun: Altitude: 14.66 Azimuth: 88.95

Moon: Altitude: -19.67 Azimuth: 269.40

Vostryakovo

Object: Altitude: -59.42 Azimuth: 272.87

Sun: Altitude: 26.79 Azimuth: 70.62

Moon: Altitude: -31.81 Azimuth: 251.06

Gal. latitude: -60.483615 Gal. longitude: 345.498496

Dist. to Sun: 143.939163

Dist. to Moon: 31.222168

Moon coord.: (334.023284 d, -16.083323 d)

Sun coord.: (151.493481 d, 11.693302 d)

Lunar disk: 0.998086

Lunar phase: 5.014673

Lunar bright limb: 150.429304

No SN in this field

2025-06-01 13:18:36 (JD 2460828.054583)

Siderial time 8.503158 h

Ra 22:53:48.00 Dec -46:18:00.00
(343.450000d, -46.300000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -54.68 Azimuth: 284.92

Sun: Altitude: -12.27 Azimuth: 149.87

Moon: Altitude: 24.21 Azimuth: 86.96

Tunka

Object: Altitude: -70.02 Azimuth: 265.74

Sun: Altitude: -1.24 Azimuth: 129.49

Moon: Altitude: 38.68 Azimuth: 64.68

Kislovodsk

Object: Altitude: -68.08 Azimuth: 72.41

Sun: Altitude: 34.28 Azimuth: 88.72

Moon: Altitude: 60.61 Azimuth: 333.64

Tavrida

Object: Altitude: -62.56 Azimuth: 72.51

Sun: Altitude: 40.27 Azimuth: 81.65

Moon: Altitude: 56.45 Azimuth: 320.22

SAAO

Object: Altitude: 1.93 Azimuth: 33.36

Sun: Altitude: 22.70 Azimuth: 138.42

Moon: Altitude: 30.78 Azimuth: 219.62

IAC

Object: Altitude: -20.02 Azimuth: 47.34

Sun: Altitude: 82.80 Azimuth: 31.39

Moon: Altitude: 23.17 Azimuth: 263.03

Argentina

Object: Altitude: 58.10 Azimuth: 52.15

Sun: Altitude: 18.71 Azimuth: 227.37

Moon: Altitude: -38.12 Azimuth: 273.47

Mexico

Object: Altitude: 12.57 Azimuth: 357.24

Sun: Altitude: 11.32 Azimuth: 250.90

Moon: Altitude: -40.55 Azimuth: 197.71

Ural

Object: Altitude: -76.25 Azimuth: 135.38

Sun: Altitude: 23.72 Azimuth: 94.44

Moon: Altitude: 49.41 Azimuth: 5.72

Vostryakovo

Object: Altitude: -66.02 Azimuth: 97.20

Sun: Altitude: 35.85 Azimuth: 76.71

Moon: Altitude: 48.83 Azimuth: 333.48

Gal. latitude: -60.483615 Gal. longitude: 345.498496

Dist. to Sun: 103.089242

Dist. to Moon: 146.748010

Moon coord.: (145.593067 d, 16.546892 d)

Sun coord.: (69.378444 d, 22.093406 d)

Lunar disk: 0.341696

Lunar phase: 108.457863

Lunar bright limb: 288.345082

No SN in this field
Recent coverage and limits telegrams

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

  ID = 4859
TYPE = 35
DAYS = 2


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the FERMI GRB210822.27 (trigger No 651306769,22h 53m 48.00s , -46d 18m 00.0s, R=2.08) errorbox  44653 sec after notice time and 65943 sec after trigger time at 2021-08-23 00:51:47 UT, with upper limit up to  18.6 mag. The observations began at zenith distance = 21 deg. The sun  altitude  is -53.7 deg. 

The galactic latitude b = -60 deg., longitude l = 345 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1697118

We obtain a following upper limits.  

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

   65973 | 2021-08-23 00:51:47 |         MASTER-SAAO | (23h 04m 07.16s , -48d 22m 25.3s) |   C |    60 | 17.9 |        
   66954 | 2021-08-23 01:08:08 |         MASTER-SAAO | (23h 04m 08.51s , -48d 23m 38.3s) |   C |    60 | 17.9 |        
   67939 | 2021-08-23 01:24:34 |         MASTER-SAAO | (23h 04m 16.64s , -48d 22m 16.0s) |   C |    60 | 18.1 |        
   75654 | 2021-08-23 03:33:08 |         MASTER-SAAO | (22h 41m 36.02s , -48d 17m 58.1s) |   C |    60 | 17.6 |        
   75954 | 2021-08-23 03:38:08 |         MASTER-SAAO | (22h 53m 41.60s , -48d 16m 21.4s) |   C |    60 | 17.7 |        
   76630 | 2021-08-23 03:49:24 |         MASTER-SAAO | (22h 41m 42.77s , -48d 16m 30.3s) |   C |    60 | 17.6 |        
   76928 | 2021-08-23 03:54:22 |         MASTER-SAAO | (22h 53m 43.85s , -48d 17m 32.4s) |   C |    60 | 17.6 |        
   77617 | 2021-08-23 04:05:51 |         MASTER-SAAO | (22h 41m 35.37s , -48d 14m 57.0s) |   C |    60 | 17.8 |        
   77907 | 2021-08-23 04:10:41 |         MASTER-SAAO | (22h 53m 37.73s , -48d 17m 15.7s) |   C |    60 | 17.6 |        
  123514 | 2021-08-23 16:50:48 |         MASTER-SAAO | (22h 38m 26.33s , -46d 29m 01.9s) |   C |    60 | 15.5 |        
  123599 | 2021-08-23 16:52:13 |         MASTER-SAAO | (22h 49m 57.74s , -46d 29m 57.6s) |   C |    60 | 15.9 |        
  123678 | 2021-08-23 16:53:33 |         MASTER-SAAO | (23h 00m 27.59s , -46d 28m 20.0s) |   C |    60 | 15.9 |        
  123758 | 2021-08-23 16:54:52 |         MASTER-SAAO | (23h 12m 04.21s , -46d 29m 39.2s) |   C |    60 | 16.1 |        
  124597 | 2021-08-23 17:08:51 |         MASTER-SAAO | (22h 38m 25.81s , -46d 28m 23.3s) |   C |    60 | 18.2 |        
  124676 | 2021-08-23 17:10:10 |         MASTER-SAAO | (22h 49m 56.41s , -46d 29m 09.2s) |   C |    60 | 18.3 |        
  124756 | 2021-08-23 17:11:30 |         MASTER-SAAO | (23h 00m 24.78s , -46d 28m 06.2s) |   C |    60 | 18.1 |        
  124835 | 2021-08-23 17:12:49 |         MASTER-SAAO | (23h 12m 07.91s , -46d 29m 01.1s) |   C |    60 | 18.2 |        
  125685 | 2021-08-23 17:27:00 |         MASTER-SAAO | (22h 38m 17.96s , -46d 28m 45.5s) |   C |    60 | 13.6 |        
  125765 | 2021-08-23 17:28:19 |         MASTER-SAAO | (22h 50m 01.06s , -46d 29m 40.3s) |   C |    60 | 18.5 |        
  125845 | 2021-08-23 17:29:39 |         MASTER-SAAO | (23h 00m 23.19s , -46d 30m 35.2s) |   C |    60 | 18.4 |        
  125925 | 2021-08-23 17:30:59 |         MASTER-SAAO | (23h 12m 05.81s , -46d 30m 04.2s) |   C |    60 | 18.4 |        
  126186 | 2021-08-23 17:35:20 |         MASTER-SAAO | (22h 35m 59.72s , -44d 35m 55.5s) |   C |    60 | 14.9 |        
  126266 | 2021-08-23 17:36:40 |         MASTER-SAAO | (22h 47m 13.14s , -44d 34m 51.0s) |   C |    60 | 18.4 |        
  127204 | 2021-08-23 17:52:18 |         MASTER-SAAO | (22h 36m 00.70s , -44d 36m 58.1s) |   C |    60 | 17.6 |        
  127284 | 2021-08-23 17:53:38 |         MASTER-SAAO | (22h 47m 17.26s , -44d 35m 22.6s) |   C |    60 | 18.2 |        
  128387 | 2021-08-23 18:12:01 |         MASTER-SAAO | (22h 35m 59.16s , -44d 36m 09.8s) |   C |    60 | 17.7 |        
  128466 | 2021-08-23 18:13:20 |         MASTER-SAAO | (22h 47m 13.51s , -44d 37m 39.6s) |   C |    60 | 18.3 |        
  134975 | 2021-08-23 20:01:49 |         MASTER-SAAO | (22h 57m 12.92s , -44d 38m 41.4s) |   C |    60 | 18.0 |        
  135055 | 2021-08-23 20:03:09 |         MASTER-SAAO | (23h 08m 24.99s , -44d 37m 07.9s) |   C |    60 | 18.1 |        
  135934 | 2021-08-23 20:17:48 |         MASTER-SAAO | (22h 57m 05.60s , -44d 36m 49.5s) |   C |    60 | 18.1 |        
  136014 | 2021-08-23 20:19:08 |         MASTER-SAAO | (23h 08m 26.46s , -44d 37m 56.2s) |   C |    60 | 18.2 |        
  136924 | 2021-08-23 20:34:18 |         MASTER-SAAO | (22h 57m 02.90s , -44d 37m 54.1s) |   C |    60 | 18.0 |        
  137003 | 2021-08-23 20:35:38 |         MASTER-SAAO | (23h 08m 17.91s , -44d 36m 59.1s) |   C |    60 | 18.1 |        
  145130 | 2021-08-23 22:51:04 |         MASTER-SAAO | (22h 46m 13.94s , -42d 42m 24.4s) |   C |    60 | 18.1 |        
  146087 | 2021-08-23 23:07:02 |         MASTER-SAAO | (22h 46m 18.58s , -42d 43m 32.6s) |   C |    60 | 18.2 |        
  147045 | 2021-08-23 23:22:59 |         MASTER-SAAO | (22h 44m 55.88s , -42d 43m 33.7s) |   C |    60 | 15.2 |        
  152542 | 2021-08-24 00:54:36 |         MASTER-SAAO | (23h 04m 09.89s , -48d 22m 22.0s) |   C |    60 | 18.2 |        
  153519 | 2021-08-24 01:10:53 |         MASTER-SAAO | (23h 04m 12.38s , -48d 23m 00.9s) |   C |    60 | 18.6 |        
  154503 | 2021-08-24 01:27:17 |         MASTER-SAAO | (23h 04m 18.30s , -48d 21m 30.5s) |   C |    60 | 18.2 |        
  157063 | 2021-08-24 02:09:57 |         MASTER-SAAO | (22h 55m 25.62s , -42d 37m 21.5s) |   C |    60 | 18.1 |        
  158026 | 2021-08-24 02:26:00 |         MASTER-SAAO | (22h 55m 23.12s , -42d 38m 22.3s) |   C |    60 | 17.8 |        
  158954 | 2021-08-24 02:41:28 |         MASTER-SAAO | (22h 55m 26.79s , -42d 36m 06.1s) |   C |    60 | 17.7 |        
  162280 | 2021-08-24 03:36:54 |         MASTER-SAAO | (22h 41m 39.88s , -48d 17m 21.7s) |   C |    60 | 18.3 |        
  162359 | 2021-08-24 03:38:14 |         MASTER-SAAO | (22h 53m 46.00s , -48d 16m 14.2s) |   C |    60 | 18.2 |        
  163246 | 2021-08-24 03:53:00 |         MASTER-SAAO | (22h 41m 40.17s , -48d 17m 02.5s) |   C |    60 | 17.4 |        
  163325 | 2021-08-24 03:54:19 |         MASTER-SAAO | (22h 53m 45.44s , -48d 15m 39.8s) |   C |    60 | 17.6 |        
  164150 | 2021-08-24 04:08:04 |         MASTER-SAAO | (22h 41m 35.91s , -48d 15m 43.8s) |   C |    60 | 18.0 |        
  164229 | 2021-08-24 04:09:24 |         MASTER-SAAO | (22h 53m 36.90s , -48d 15m 06.9s) |   C |    60 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4856
TYPE = 35
DAYS = 1


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the FERMI GRB210822.27 (trigger No 651306769,22h 53m 48.00s , -46d 18m 00.0s, R=2.08) errorbox  44653 sec after notice time and 65943 sec after trigger time at 2021-08-23 00:51:47 UT, with upper limit up to  18.1 mag. The observations began at zenith distance = 21 deg. The sun  altitude  is -53.7 deg. 

The galactic latitude b = -60 deg., longitude l = 345 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1697118

We obtain a following upper limits.  

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

   65973 | 2021-08-23 00:51:47 |         MASTER-SAAO | (23h 04m 07.16s , -48d 22m 25.3s) |   C |    60 | 17.9 |        
   66954 | 2021-08-23 01:08:08 |         MASTER-SAAO | (23h 04m 08.51s , -48d 23m 38.3s) |   C |    60 | 17.9 |        
   67939 | 2021-08-23 01:24:34 |         MASTER-SAAO | (23h 04m 16.64s , -48d 22m 16.0s) |   C |    60 | 18.1 |        
   75654 | 2021-08-23 03:33:08 |         MASTER-SAAO | (22h 41m 36.02s , -48d 17m 58.1s) |   C |    60 | 17.6 |        
   75954 | 2021-08-23 03:38:08 |         MASTER-SAAO | (22h 53m 41.60s , -48d 16m 21.4s) |   C |    60 | 17.7 |        
   76630 | 2021-08-23 03:49:24 |         MASTER-SAAO | (22h 41m 42.77s , -48d 16m 30.3s) |   C |    60 | 17.6 |        
   76928 | 2021-08-23 03:54:22 |         MASTER-SAAO | (22h 53m 43.85s , -48d 17m 32.4s) |   C |    60 | 17.6 |        
   77617 | 2021-08-23 04:05:51 |         MASTER-SAAO | (22h 41m 35.37s , -48d 14m 57.0s) |   C |    60 | 17.8 |        
   77907 | 2021-08-23 04:10:41 |         MASTER-SAAO | (22h 53m 37.73s , -48d 17m 15.7s) |   C |    60 | 17.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4854
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the FERMI GRB210822.27 (trigger No 651306769,22h 53m 48.00s , -46d 18m 00.0s, R=2.08) errorbox  44653 sec after notice time and 65943 sec after trigger time at 2021-08-23 00:51:47 UT, with upper limit up to  17.9 mag. The observations began at zenith distance = 21 deg. The sun  altitude  is -53.7 deg. 

The galactic latitude b = -60 deg., longitude l = 345 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1697119

We obtain a following upper limits.  

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

   65973 | 2021-08-23 00:51:47 |         MASTER-SAAO | (23h 04m 07.16s , -48d 22m 25.3s) |   C |    60 | 17.9 |        
   66954 | 2021-08-23 01:08:08 |         MASTER-SAAO | (23h 04m 08.51s , -48d 23m 38.3s) |   C |    60 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4853
TYPE = 35
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the FERMI GRB210822.27 (trigger No 651306769,22h 53m 48.00s , -46d 18m 00.0s, R=2.08) errorbox  44653 sec after notice time and 65943 sec after trigger time at 2021-08-23 00:51:47 UT, with upper limit up to  17.9 mag. The observations began at zenith distance = 21 deg. The sun  altitude  is -53.7 deg. 

The galactic latitude b = -60 deg., longitude l = 345 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1697119

We obtain a following upper limits.  

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

   65973 | 2021-08-23 00:51:47 |         MASTER-SAAO | (23h 04m 07.16s , -48d 22m 25.3s) |   C |    60 | 17.9 |        
   66954 | 2021-08-23 01:08:08 |         MASTER-SAAO | (23h 04m 08.51s , -48d 23m 38.3s) |   C |    60 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 4852
TYPE = 34
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the FERMI GRB210822.27 (trigger No 651306769,22h 53m 48.00s , -46d 18m 00.0s, R=2.08) errorbox  44653 sec after notice time and 65943 sec after trigger time at 2021-08-23 00:51:47 UT, with upper limit up to  17.9 mag. The observations began at zenith distance = 21 deg. The sun  altitude  is -53.7 deg. 

The galactic latitude b = -60 deg., longitude l = 345 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1697119

We obtain a following upper limits.  

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

   65973 | 2021-08-23 00:51:47 |         MASTER-SAAO | (23h 04m 07.16s , -48d 22m 25.3s) |   C |    60 | 17.9 |        
   66954 | 2021-08-23 01:08:08 |         MASTER-SAAO | (23h 04m 08.51s , -48d 23m 38.3s) |   C |    60 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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

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