MASTER Net MASTER Database: GRB230906.54 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 GRB230906.54
Trignum 715697712
Trigger time 2023-09-06 12:55:07.15
Notice time 2023-09-06 12:55:45.018992
Coord, eb (05h 34m 48.00s , -47d 49m 01.2s) , 3.57
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You are viewing outdated information, relevant error box is here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
2266538 2023-09-06 13:19:48.973919 05h 25m 28.80s -47d 24m 36.0s FERMI 2.79 alert 715697712 16 115 alert
2266526 2023-09-06 12:55:45.018992 05h 34m 48.00s -47d 49m 01.2s FERMI 3.57 alert 715697712 59 111 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

2023-09-06 12:55:07 (JD 2460194.038275)

Siderial time 14.450668 h

Ra 05:34:48.00 Dec -47:49:01.20
( 83.700000d, -47.817000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -62.16 Azimuth: 281.70

Sun: Altitude: -24.33 Azimuth: 137.79

Moon: Altitude: 2.39 Azimuth: 231.79

Tunka

Object: Altitude: -77.45 Azimuth: 258.77

Sun: Altitude: -11.21 Azimuth: 116.10

Moon: Altitude: -6.78 Azimuth: 212.21

Kislovodsk

Object: Altitude: -60.77 Azimuth: 67.04

Sun: Altitude: 28.01 Azimuth: 70.70

Moon: Altitude: -17.36 Azimuth: 156.65

Tavrida

Object: Altitude: -55.56 Azimuth: 66.44

Sun: Altitude: 33.22 Azimuth: 62.80

Moon: Altitude: -13.71 Azimuth: 149.33

SAAO

Object: Altitude: 8.39 Azimuth: 37.50

Sun: Altitude: 38.60 Azimuth: 132.75

Moon: Altitude: -49.01 Azimuth: 92.33

IAC

Object: Altitude: -13.76 Azimuth: 42.72

Sun: Altitude: 68.16 Azimuth: 354.56

Moon: Altitude: 6.65 Azimuth: 115.16

Argentina

Object: Altitude: 64.55 Azimuth: 43.45

Sun: Altitude: 25.22 Azimuth: 243.88

Moon: Altitude: 19.47 Azimuth: 138.75

Mexico

Object: Altitude: 10.00 Azimuth: 349.87

Sun: Altitude: -1.65 Azimuth: 261.35

Moon: Altitude: 83.85 Azimuth: 20.39

Ural

Object: Altitude: -72.33 Azimuth: 110.71

Sun: Altitude: 14.15 Azimuth: 80.05

Moon: Altitude: -7.45 Azimuth: 172.97

Vostryakovo

Object: Altitude: -60.60 Azimuth: 85.05

Sun: Altitude: 26.04 Azimuth: 61.01

Moon: Altitude: -5.52 Azimuth: 153.48

Gal. latitude: -32.050750 Gal. longitude: 254.314477

Dist. to Sun: 88.834883

Dist. to Moon: 74.719016

Moon coord.: (66.389932 d, 25.261712 d)

Sun coord.: (164.664999 d, 6.542532 d)

Lunar disk: 0.541569

Lunar phase: 85.231018

Lunar bright limb: 80.523581

No SN in this field

2023-09-06 12:55:45 (JD 2460194.038715)

Siderial time 14.461253 h

Ra 05:34:48.00 Dec -47:49:01.20
( 83.700000d, -47.817000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -62.06 Azimuth: 281.79

Sun: Altitude: -24.39 Azimuth: 137.95

Moon: Altitude: 2.47 Azimuth: 231.90

Tunka

Object: Altitude: -77.35 Azimuth: 258.98

Sun: Altitude: -11.30 Azimuth: 116.23

Moon: Altitude: -6.72 Azimuth: 212.34

Kislovodsk

Object: Altitude: -60.88 Azimuth: 67.07

Sun: Altitude: 27.91 Azimuth: 70.83

Moon: Altitude: -17.40 Azimuth: 156.79

Tavrida

Object: Altitude: -55.66 Azimuth: 66.48

Sun: Altitude: 33.12 Azimuth: 62.94

Moon: Altitude: -13.77 Azimuth: 149.46

SAAO

Object: Altitude: 8.31 Azimuth: 37.43

Sun: Altitude: 38.50 Azimuth: 132.59

Moon: Altitude: -49.14 Azimuth: 92.25

IAC

Object: Altitude: -13.85 Azimuth: 42.77

Sun: Altitude: 68.17 Azimuth: 354.99

Moon: Altitude: 6.53 Azimuth: 115.23

Argentina

Object: Altitude: 64.45 Azimuth: 43.57

Sun: Altitude: 25.34 Azimuth: 243.77

Moon: Altitude: 19.38 Azimuth: 138.63

Mexico

Object: Altitude: 10.02 Azimuth: 349.98

Sun: Altitude: -1.52 Azimuth: 261.43

Moon: Altitude: 83.80 Azimuth: 21.60

Ural

Object: Altitude: -72.41 Azimuth: 110.94

Sun: Altitude: 14.06 Azimuth: 80.19

Moon: Altitude: -7.45 Azimuth: 173.11

Vostryakovo

Object: Altitude: -60.69 Azimuth: 85.17

Sun: Altitude: 25.96 Azimuth: 61.16

Moon: Altitude: -5.56 Azimuth: 153.61

Gal. latitude: -32.050750 Gal. longitude: 254.314477

Dist. to Sun: 88.835022

Dist. to Moon: 74.719114

Moon coord.: (66.396003 d, 25.262974 d)

Sun coord.: (164.665396 d, 6.542368 d)

Lunar disk: 0.541524

Lunar phase: 85.236208

Lunar bright limb: 80.526118

No SN in this field

2023-09-06 13:55:45 (JD 2460194.080382)

Siderial time 15.463991 h

Ra 05:34:48.00 Dec -47:49:01.20
( 83.700000d, -47.817000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -52.82 Azimuth: 289.35

Sun: Altitude: -29.80 Azimuth: 153.57

Moon: Altitude: 10.32 Azimuth: 242.43

Tunka

Object: Altitude: -68.09 Azimuth: 272.94

Sun: Altitude: -19.10 Azimuth: 129.41

Moon: Altitude: -1.08 Azimuth: 224.16

Kislovodsk

Object: Altitude: -70.95 Azimuth: 68.24

Sun: Altitude: 17.36 Azimuth: 82.27

Moon: Altitude: -20.25 Azimuth: 170.27

Tavrida

Object: Altitude: -65.59 Azimuth: 70.06

Sun: Altitude: 23.15 Azimuth: 75.54

Moon: Altitude: -17.86 Azimuth: 162.36

SAAO

Object: Altitude: 1.23 Azimuth: 30.23

Sun: Altitude: 28.25 Azimuth: 119.58

Moon: Altitude: -61.39 Azimuth: 84.11

IAC

Object: Altitude: -23.20 Azimuth: 46.77

Sun: Altitude: 64.93 Azimuth: 32.18

Moon: Altitude: -4.59 Azimuth: 122.12

Argentina

Object: Altitude: 55.00 Azimuth: 50.61

Sun: Altitude: 36.15 Azimuth: 231.79

Moon: Altitude: 10.40 Azimuth: 128.80

Mexico

Object: Altitude: 11.13 Azimuth: 0.18

Sun: Altitude: 11.27 Azimuth: 269.13

Moon: Altitude: 74.02 Azimuth: 73.44

Ural

Object: Altitude: -79.03 Azimuth: 143.01

Sun: Altitude: 5.92 Azimuth: 92.88

Moon: Altitude: -7.38 Azimuth: 186.29

Vostryakovo

Object: Altitude: -69.21 Azimuth: 98.09

Sun: Altitude: 18.06 Azimuth: 74.82

Moon: Altitude: -8.25 Azimuth: 166.50

Gal. latitude: -32.050750 Gal. longitude: 254.314477

Dist. to Sun: 88.848163

Dist. to Moon: 74.729046

Moon coord.: (66.971364 d, 25.381332 d)

Sun coord.: (164.702941 d, 6.526864 d)

Lunar disk: 0.537249

Lunar phase: 85.727595

Lunar bright limb: 80.767212

No SN in this field

2025-01-30 16:59:19 (JD 2460706.207859)

Siderial time 4.175242 h

Ra 05:34:48.00 Dec -47:49:01.20
( 83.700000d, -47.817000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -24.53 Azimuth: 43.48

Sun: Altitude: -53.76 Azimuth: 212.26

Moon: Altitude: -54.93 Azimuth: 185.29

Tunka

Object: Altitude: -16.60 Azimuth: 29.34

Sun: Altitude: -55.51 Azimuth: 171.41

Moon: Altitude: -49.78 Azimuth: 147.19

Kislovodsk

Object: Altitude: -2.66 Azimuth: 349.21

Sun: Altitude: -29.52 Azimuth: 93.57

Moon: Altitude: -16.39 Azimuth: 84.24

Tavrida

Object: Altitude: -5.05 Azimuth: 343.66

Sun: Altitude: -23.41 Azimuth: 88.07

Moon: Altitude: -10.51 Azimuth: 78.75

SAAO

Object: Altitude: 57.61 Azimuth: 309.67

Sun: Altitude: 7.14 Azimuth: 73.71

Moon: Altitude: 19.40 Azimuth: 83.75

IAC

Object: Altitude: -11.55 Azimuth: 318.50

Sun: Altitude: 19.54 Azimuth: 56.32

Moon: Altitude: 32.21 Azimuth: 46.02

Argentina

Object: Altitude: 2.24 Azimuth: 328.03

Sun: Altitude: 75.57 Azimuth: 170.33

Moon: Altitude: 69.36 Azimuth: 220.27

Mexico

Object: Altitude: -71.27 Azimuth: 336.64

Sun: Altitude: 28.90 Azimuth: 317.27

Moon: Altitude: 19.92 Azimuth: 303.14

Ural

Object: Altitude: -14.86 Azimuth: 0.59

Sun: Altitude: -36.58 Azimuth: 117.02

Moon: Altitude: -26.45 Azimuth: 102.95

Vostryakovo

Object: Altitude: -14.68 Azimuth: 345.68

Sun: Altitude: -25.49 Azimuth: 95.88

Moon: Altitude: -14.54 Azimuth: 83.94

Gal. latitude: -32.050750 Gal. longitude: 254.314477

Dist. to Sun: 101.103947

Dist. to Moon: 94.067396

Moon coord.: (329.346738 d, -15.345536 d)

Sun coord.: (313.167339 d, -17.553629 d)

Lunar disk: 0.018678

Lunar phase: 164.290082

Lunar bright limb: 259.582623

No SN in this field
Recent coverage and limits telegrams

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

  ID = 8834
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 GRB 230906A ( Fermi GBM team, GCN 34631) errorbox  30270 sec after notice time and 30304 sec after trigger time at 2023-09-06 21:20:11 UT, with upper limit up to  19.2 mag. The observations began at zenith distance = 79 deg. The sun  altitude  is -58.8 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB 230906A errorbox  51061 sec after notice time and 51095 sec after trigger time at 2023-09-07 03:06:42 UT, with upper limit up to  19.5 mag. The observations began at zenith distance = 80 deg. The sun  altitude  is -58.1 deg. 

The galactic latitude b = -34 deg., longitude l = 254 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2266533

We obtain a following upper limits.  

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

   30334 | 2023-09-06 21:20:11 |         MASTER-SAAO | (05h 00m 24.99s , -46d 27m 50.7s) |   C |    60 | 18.0 |        
   30505 | 2023-09-06 21:23:02 |         MASTER-SAAO | (05h 12m 37.40s , -50d 13m 19.5s) |   C |    60 | 18.3 |        
   30755 | 2023-09-06 21:27:12 |         MASTER-SAAO | (05h 11m 27.14s , -48d 21m 19.4s) |   C |    60 | 18.4 |        
   30835 | 2023-09-06 21:28:32 |         MASTER-SAAO | (05h 23m 34.07s , -48d 20m 18.0s) |   C |    60 | 18.1 |        
   30927 | 2023-09-06 21:30:03 |         MASTER-SAAO | (05h 23m 47.74s , -50d 14m 12.7s) |   C |    60 | 18.2 |        
   31006 | 2023-09-06 21:31:23 |         MASTER-SAAO | (05h 36m 19.91s , -50d 12m 20.2s) |   C |    60 | 18.1 |        
   31177 | 2023-09-06 21:34:14 |         MASTER-SAAO | (05h 25m 47.48s , -52d 07m 32.8s) |   C |    60 | 18.3 |        
   31269 | 2023-09-06 21:35:46 |         MASTER-SAAO | (05h 00m 24.16s , -46d 28m 05.0s) |   C |    60 | 18.2 |        
   31349 | 2023-09-06 21:37:05 |         MASTER-SAAO | (05h 12m 05.69s , -46d 27m 22.8s) |   C |    60 | 18.4 |        
   31519 | 2023-09-06 21:39:56 |         MASTER-SAAO | (05h 12m 32.83s , -50d 15m 02.8s) |   C |    60 | 18.5 |        
   31603 | 2023-09-06 21:41:20 |         MASTER-SAAO | (05h 11m 40.05s , -44d 32m 43.7s) |   C |    60 | 18.0 |        
   31693 | 2023-09-06 21:42:50 |         MASTER-SAAO | (05h 22m 53.84s , -44d 31m 14.2s) |   C |    60 | 18.1 |        
   31774 | 2023-09-06 21:44:10 |         MASTER-SAAO | (05h 11m 33.39s , -48d 20m 35.7s) |   C |    60 | 18.1 |        
   31864 | 2023-09-06 21:45:40 |         MASTER-SAAO | (05h 23m 28.73s , -48d 21m 01.4s) |   C |    60 | 18.3 |        
   31954 | 2023-09-06 21:47:11 |         MASTER-SAAO | (05h 23m 49.01s , -50d 14m 36.8s) |   C |    60 | 18.4 |        
   32033 | 2023-09-06 21:48:30 |         MASTER-SAAO | (05h 36m 16.22s , -50d 12m 36.1s) |   C |    60 | 18.4 |        
   32205 | 2023-09-06 21:51:21 |         MASTER-SAAO | (05h 25m 47.76s , -52d 07m 04.9s) |   C |    60 | 18.5 |        
   32296 | 2023-09-06 21:52:52 |         MASTER-SAAO | (05h 00m 22.53s , -46d 27m 21.6s) |   C |    60 | 18.6 |        
   32375 | 2023-09-06 21:54:12 |         MASTER-SAAO | (05h 11m 57.89s , -46d 25m 48.6s) |   C |    60 | 18.5 |        
   32556 | 2023-09-06 21:57:13 |         MASTER-SAAO | (05h 12m 29.50s , -50d 15m 45.1s) |   C |    60 | 18.6 |        
   32636 | 2023-09-06 21:58:33 |         MASTER-SAAO | (05h 11m 46.10s , -44d 33m 38.8s) |   C |    60 | 18.6 |        
   32728 | 2023-09-06 22:00:05 |         MASTER-SAAO | (05h 22m 55.64s , -44d 31m 28.6s) |   C |    60 | 18.4 |        
   32812 | 2023-09-06 22:01:29 |         MASTER-SAAO | (05h 11m 29.15s , -48d 21m 44.7s) |   C |    60 | 18.6 |        
   32903 | 2023-09-06 22:02:59 |         MASTER-SAAO | (05h 23m 33.45s , -48d 19m 33.7s) |   C |    60 | 18.5 |        
   32982 | 2023-09-06 22:04:19 |         MASTER-SAAO | (05h 23m 43.51s , -50d 14m 16.6s) |   C |    60 | 18.4 |        
   33073 | 2023-09-06 22:05:50 |         MASTER-SAAO | (05h 36m 12.21s , -50d 12m 38.5s) |   C |    60 | 18.5 |        
   33243 | 2023-09-06 22:08:40 |         MASTER-SAAO | (05h 25m 39.45s , -52d 09m 12.5s) |   C |    60 | 18.6 |        
   33333 | 2023-09-06 22:10:09 |         MASTER-SAAO | (05h 22m 26.71s , -46d 25m 43.9s) |   C |    60 | 18.5 |        
   33412 | 2023-09-06 22:11:29 |         MASTER-SAAO | (05h 34m 02.31s , -46d 26m 54.5s) |   C |    60 | 18.4 |        
   33503 | 2023-09-06 22:12:59 |         MASTER-SAAO | (05h 34m 15.92s , -48d 19m 54.9s) |   C |    60 | 18.5 |        
   33583 | 2023-09-06 22:14:19 |         MASTER-SAAO | (05h 46m 17.28s , -48d 18m 19.0s) |   C |    60 | 18.3 |        
   33673 | 2023-09-06 22:15:49 |         MASTER-SAAO | (05h 11m 45.95s , -44d 33m 11.5s) |   C |    60 | 18.3 |        
   33752 | 2023-09-06 22:17:09 |         MASTER-SAAO | (05h 22m 52.29s , -44d 33m 40.5s) |   C |    60 | 18.7 |        
   33832 | 2023-09-06 22:18:29 |         MASTER-SAAO | (05h 33m 00.63s , -44d 31m 29.4s) |   C |    60 | 18.5 |        
   33922 | 2023-09-06 22:19:59 |         MASTER-SAAO | (05h 44m 13.04s , -44d 32m 28.8s) |   C |    60 | 18.3 |        
   34002 | 2023-09-06 22:21:19 |         MASTER-SAAO | (05h 44m 25.45s , -46d 25m 35.7s) |   C |    60 | 18.4 |        
   34267 | 2023-09-06 22:25:43 |         MASTER-SAAO | (05h 00m 40.14s , -48d 22m 31.1s) |   C |    60 | 19.0 |        
   34346 | 2023-09-06 22:27:03 |         MASTER-SAAO | (05h 22m 25.42s , -46d 25m 60.0s) |   C |    60 | 18.7 |        
   34438 | 2023-09-06 22:28:34 |         MASTER-SAAO | (05h 34m 01.22s , -46d 26m 54.3s) |   C |    60 | 18.5 |        
   34517 | 2023-09-06 22:29:54 |         MASTER-SAAO | (05h 34m 20.81s , -48d 19m 19.4s) |   C |    60 | 18.5 |        
   34608 | 2023-09-06 22:31:25 |         MASTER-SAAO | (05h 46m 16.51s , -48d 19m 36.5s) |   C |    60 | 18.4 |        
   34699 | 2023-09-06 22:32:56 |         MASTER-SAAO | (05h 22m 39.34s , -42d 38m 57.1s) |   C |    60 | 18.4 |        
   34870 | 2023-09-06 22:35:47 |         MASTER-SAAO | (05h 33m 01.81s , -44d 33m 02.3s) |   C |    60 | 18.0 |        
   34950 | 2023-09-06 22:37:06 |         MASTER-SAAO | (05h 44m 11.89s , -44d 31m 06.2s) |   C |    60 | 18.4 |        
   35041 | 2023-09-06 22:38:37 |         MASTER-SAAO | (05h 44m 26.60s , -46d 26m 33.9s) |   C |    60 | 18.5 |        
   35302 | 2023-09-06 22:42:58 |         MASTER-SAAO | (05h 00m 32.12s , -48d 21m 08.4s) |   C |    60 | 19.0 |        
   35381 | 2023-09-06 22:44:18 |         MASTER-SAAO | (05h 22m 26.15s , -46d 27m 05.8s) |   C |    60 | 18.9 |        
   35472 | 2023-09-06 22:45:49 |         MASTER-SAAO | (05h 33m 55.94s , -46d 27m 31.5s) |   C |    60 | 18.7 |        
   35552 | 2023-09-06 22:47:08 |         MASTER-SAAO | (05h 34m 18.86s , -48d 21m 28.5s) |   C |    60 | 18.6 |        
   35643 | 2023-09-06 22:48:39 |         MASTER-SAAO | (05h 46m 17.36s , -48d 19m 06.5s) |   C |    60 | 18.6 |        
   35733 | 2023-09-06 22:50:10 |         MASTER-SAAO | (05h 22m 35.31s , -42d 39m 59.0s) |   C |    60 | 18.4 |        
   35904 | 2023-09-06 22:53:00 |         MASTER-SAAO | (05h 32m 55.08s , -44d 32m 41.8s) |   C |    60 | 18.6 |        
   35984 | 2023-09-06 22:54:20 |         MASTER-SAAO | (05h 44m 07.89s , -44d 31m 08.5s) |   C |    60 | 18.6 |        
   36074 | 2023-09-06 22:55:51 |         MASTER-SAAO | (05h 44m 28.39s , -46d 26m 06.8s) |   C |    60 | 18.7 |        
   36325 | 2023-09-06 23:00:02 |         MASTER-SAAO | (05h 00m 33.69s , -48d 21m 37.6s) |   C |    60 | 19.2 |        
   36762 | 2023-09-06 23:07:19 |         MASTER-SAAO | (05h 22m 37.33s , -42d 39m 59.0s) |   C |    60 | 18.9 |        
   36943 | 2023-09-06 23:10:20 |         MASTER-SAAO | (05h 47m 27.54s , -50d 13m 33.7s) |   C |    60 | 18.7 |        
   37967 | 2023-09-06 23:27:23 |         MASTER-SAAO | (05h 47m 21.90s , -50d 14m 58.1s) |   C |    60 | 18.8 |        
   38993 | 2023-09-06 23:44:30 |         MASTER-SAAO | (05h 47m 22.32s , -50d 14m 34.9s) |   C |    60 | 18.8 |        
   51125 | 2023-09-07 03:06:42 |         MASTER-OAFA | (05h 01m 36.40s , -48d 17m 57.0s) |   C |    60 | 17.2 |        
   53535 | 2023-09-07 03:46:52 |         MASTER-OAFA | (05h 01m 32.86s , -48d 17m 41.2s) |   C |    60 | 17.7 |        
   53726 | 2023-09-07 03:50:03 |         MASTER-OAFA | (05h 24m 25.95s , -48d 16m 58.3s) |   C |    60 | 17.5 |        
   53756 | 2023-09-07 03:50:03 |         MASTER-OAFA | (05h 24m 25.95s , -48d 16m 58.2s) |   C |   120 | 18.0 |  Coadd 
   53953 | 2023-09-07 03:53:50 |         MASTER-OAFA | (05h 24m 39.44s , -50d 11m 05.4s) |   C |    60 | 17.6 |        
   54066 | 2023-09-07 03:55:43 |         MASTER-OAFA | (05h 37m 14.63s , -50d 10m 24.2s) |   C |    60 | 16.4 |        
   54179 | 2023-09-07 03:57:35 |         MASTER-OAFA | (05h 35m 14.56s , -48d 16m 31.5s) |   C |    60 | 17.4 |        
   54403 | 2023-09-07 04:01:19 |         MASTER-OAFA | (05h 01m 17.31s , -46d 21m 34.1s) |   C |    60 | 18.0 |        
   54728 | 2023-09-07 04:06:45 |         MASTER-OAFA | (05h 24m 29.32s , -48d 16m 48.2s) |   C |    60 | 17.6 |        
   54951 | 2023-09-07 04:10:28 |         MASTER-OAFA | (05h 34m 56.63s , -46d 22m 33.3s) |   C |    60 | 17.4 |        
   55062 | 2023-09-07 04:12:19 |         MASTER-OAFA | (05h 24m 46.77s , -50d 09m 00.7s) |   C |    60 | 17.5 |        
   55174 | 2023-09-07 04:14:10 |         MASTER-OAFA | (05h 37m 08.73s , -50d 09m 34.2s) |   C |    60 | 17.9 |        
   55286 | 2023-09-07 04:16:03 |         MASTER-OAFA | (05h 35m 10.92s , -48d 14m 36.7s) |   C |    60 | 15.4 |        
   55397 | 2023-09-07 04:17:54 |         MASTER-OAFA | (05h 47m 18.07s , -48d 15m 17.8s) |   C |    60 | 17.6 |        
   55510 | 2023-09-07 04:19:47 |         MASTER-OAFA | (05h 01m 16.77s , -46d 23m 23.1s) |   C |    60 | 16.3 |        
   55622 | 2023-09-07 04:21:38 |         MASTER-OAFA | (05h 12m 58.94s , -46d 23m 04.1s) |   C |    60 | 18.1 |        
   55652 | 2023-09-07 04:21:38 |         MASTER-OAFA | (05h 12m 58.95s , -46d 23m 04.0s) |   C |   120 | 18.7 |  Coadd 
   55734 | 2023-09-07 04:23:30 |         MASTER-OAFA | (05h 12m 25.11s , -48d 15m 06.5s) |   C |    60 | 18.1 |        
   56003 | 2023-09-07 04:27:59 |         MASTER-OAFA | (05h 34m 53.68s , -46d 21m 28.7s) |   C |    60 | 17.7 |        
   56229 | 2023-09-07 04:31:46 |         MASTER-OAFA | (05h 37m 14.00s , -50d 09m 23.9s) |   C |    60 | 17.9 |        
   56340 | 2023-09-07 04:33:37 |         MASTER-OAFA | (05h 35m 11.45s , -48d 16m 26.8s) |   C |    60 | 17.8 |        
   56452 | 2023-09-07 04:35:28 |         MASTER-OAFA | (05h 47m 17.30s , -48d 15m 48.3s) |   C |    60 | 17.7 |        
   56563 | 2023-09-07 04:37:20 |         MASTER-OAFA | (05h 01m 20.01s , -46d 21m 29.7s) |   C |    60 | 18.0 |        
   56675 | 2023-09-07 04:39:12 |         MASTER-OAFA | (05h 12m 55.52s , -46d 22m 28.1s) |   C |    60 | 18.2 |        
   56873 | 2023-09-07 04:42:30 |         MASTER-OAFA | (05h 12m 40.17s , -44d 27m 53.2s) |   C |    60 | 16.9 |        
   56985 | 2023-09-07 04:44:21 |         MASTER-OAFA | (05h 23m 45.90s , -44d 28m 34.9s) |   C |    60 | 17.9 |        
   57208 | 2023-09-07 04:48:04 |         MASTER-OAFA | (05h 13m 29.11s , -50d 10m 35.1s) |   C |    60 | 18.2 |        
   57432 | 2023-09-07 04:51:49 |         MASTER-OAFA | (05h 45m 02.42s , -44d 25m 58.5s) |   C |    60 | 17.8 |        
   57656 | 2023-09-07 04:55:33 |         MASTER-OAFA | (05h 26m 44.08s , -52d 04m 22.3s) |   C |    60 | 17.8 |        
   57769 | 2023-09-07 04:57:26 |         MASTER-OAFA | (05h 45m 22.13s , -46d 21m 43.0s) |   C |    60 | 17.8 |        
   57993 | 2023-09-07 05:01:10 |         MASTER-OAFA | (05h 12m 33.05s , -44d 27m 41.3s) |   C |    60 | 18.3 |        
   58104 | 2023-09-07 05:03:01 |         MASTER-OAFA | (05h 23m 44.89s , -44d 26m 24.7s) |   C |    60 | 16.7 |        
   58328 | 2023-09-07 05:06:44 |         MASTER-OAFA | (05h 13m 26.06s , -50d 10m 36.8s) |   C |    60 | 17.9 |        
   58439 | 2023-09-07 05:08:36 |         MASTER-OAFA | (05h 33m 56.97s , -44d 28m 02.7s) |   C |    60 | 17.6 |        
   58808 | 2023-09-07 05:14:45 |         MASTER-OAFA | (05h 26m 46.10s , -52d 02m 39.4s) |   C |    60 | 18.0 |        
   58920 | 2023-09-07 05:16:37 |         MASTER-OAFA | (05h 45m 19.49s , -46d 20m 42.5s) |   C |    60 | 17.4 |        
   59144 | 2023-09-07 05:20:21 |         MASTER-OAFA | (05h 12m 39.96s , -44d 27m 31.3s) |   C |    60 | 18.2 |        
   59433 | 2023-09-07 05:25:10 |         MASTER-OAFA | (05h 23m 45.01s , -44d 26m 13.5s) |   C |    60 | 17.7 |        
   59731 | 2023-09-07 05:30:08 |         MASTER-OAFA | (05h 13m 32.60s , -50d 09m 29.6s) |   C |    60 | 18.2 |        
   59843 | 2023-09-07 05:32:00 |         MASTER-OAFA | (05h 33m 50.83s , -44d 27m 56.5s) |   C |    60 | 17.0 |        
   59957 | 2023-09-07 05:33:53 |         MASTER-OAFA | (05h 45m 08.84s , -44d 27m 10.0s) |   C |    60 | 18.0 |        
   60181 | 2023-09-07 05:37:38 |         MASTER-OAFA | (05h 26m 42.12s , -52d 03m 35.6s) |   C |    60 | 17.7 |        
   60293 | 2023-09-07 05:39:30 |         MASTER-OAFA | (05h 45m 25.23s , -46d 19m 38.4s) |   C |    60 | 17.2 |        
   61799 | 2023-09-07 06:04:35 |         MASTER-OAFA | (05h 48m 24.73s , -50d 07m 25.4s) |   C |    60 | 18.3 |        
   62343 | 2023-09-07 06:13:39 |         MASTER-OAFA | (05h 27m 08.97s , -50d 03m 54.9s) |   C |    60 | 18.1 |        
   62695 | 2023-09-07 06:18:32 |         MASTER-OAFA | (05h 19m 13.03s , -49d 03m 08.8s) |   C |   180 | 18.9 |        
   62875 | 2023-09-07 06:18:32 |         MASTER-OAFA | (05h 19m 13.04s , -49d 03m 08.9s) |   C |   540 | 19.4 |  Coadd 
   63240 | 2023-09-07 06:27:37 |         MASTER-OAFA | (05h 15m 11.02s , -47d 03m 59.6s) |   C |   180 | 18.9 |        
   63330 | 2023-09-07 06:27:37 |         MASTER-OAFA | (05h 15m 11.05s , -47d 03m 59.5s) |   C |   360 | 19.5 |  Coadd 
   63510 | 2023-09-07 06:32:06 |         MASTER-OAFA | (05h 15m 08.29s , -47d 02m 23.3s) |   C |   180 | 19.2 |        
   66084 | 2023-09-07 07:16:01 |         MASTER-OAFA | (05h 27m 13.55s , -50d 01m 53.2s) |   C |    60 | 18.0 |        
   66488 | 2023-09-07 07:22:45 |         MASTER-OAFA | (05h 48m 22.71s , -50d 07m 58.8s) |   C |    60 | 18.0 |        
   74142 | 2023-09-07 09:29:19 |         MASTER-OAFA | (05h 19m 16.99s , -49d 02m 22.0s) |   C |   180 | 18.9 |        
   74375 | 2023-09-07 09:33:12 |         MASTER-OAFA | (05h 19m 17.21s , -49d 03m 49.7s) |   C |   180 | 18.9 |        
   74669 | 2023-09-07 09:38:06 |         MASTER-OAFA | (05h 23m 14.96s , -50d 02m 02.6s) |   C |   180 | 18.9 |        
   74881 | 2023-09-07 09:41:37 |         MASTER-OAFA | (05h 23m 21.38s , -50d 03m 03.1s) |   C |   180 | 18.9 |        
   75092 | 2023-09-07 09:45:09 |         MASTER-OAFA | (05h 27m 17.56s , -51d 03m 55.3s) |   C |   180 | 18.7 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8832
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 GRB 230906A ( Fermi GBM team, GCN 34631) errorbox  30270 sec after notice time and 30304 sec after trigger time at 2023-09-06 21:20:11 UT, with upper limit up to  19.2 mag. The observations began at zenith distance = 79 deg. The sun  altitude  is -58.8 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) started inspect of the FERMI GRB 230906A errorbox  62279 sec after notice time and 62312 sec after trigger time at 2023-09-07 06:13:39 UT, with upper limit up to  19.2 mag. The observations began at zenith distance = 55 deg. The sun  altitude  is -55.8 deg. 

The galactic latitude b = -34 deg., longitude l = 254 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2266533

We obtain a following upper limits.  

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

   30334 | 2023-09-06 21:20:11 |         MASTER-SAAO | (05h 00m 24.99s , -46d 27m 50.7s) |   C |    60 | 18.0 |        
   30505 | 2023-09-06 21:23:02 |         MASTER-SAAO | (05h 12m 37.40s , -50d 13m 19.5s) |   C |    60 | 18.3 |        
   30755 | 2023-09-06 21:27:12 |         MASTER-SAAO | (05h 11m 27.14s , -48d 21m 19.4s) |   C |    60 | 18.4 |        
   30835 | 2023-09-06 21:28:32 |         MASTER-SAAO | (05h 23m 34.07s , -48d 20m 18.0s) |   C |    60 | 18.1 |        
   30927 | 2023-09-06 21:30:03 |         MASTER-SAAO | (05h 23m 47.74s , -50d 14m 12.7s) |   C |    60 | 18.2 |        
   31006 | 2023-09-06 21:31:23 |         MASTER-SAAO | (05h 36m 19.91s , -50d 12m 20.2s) |   C |    60 | 18.1 |        
   31177 | 2023-09-06 21:34:14 |         MASTER-SAAO | (05h 25m 47.48s , -52d 07m 32.8s) |   C |    60 | 18.3 |        
   31269 | 2023-09-06 21:35:46 |         MASTER-SAAO | (05h 00m 24.16s , -46d 28m 05.0s) |   C |    60 | 18.2 |        
   31349 | 2023-09-06 21:37:05 |         MASTER-SAAO | (05h 12m 05.69s , -46d 27m 22.8s) |   C |    60 | 18.4 |        
   31519 | 2023-09-06 21:39:56 |         MASTER-SAAO | (05h 12m 32.83s , -50d 15m 02.8s) |   C |    60 | 18.5 |        
   31603 | 2023-09-06 21:41:20 |         MASTER-SAAO | (05h 11m 40.05s , -44d 32m 43.7s) |   C |    60 | 18.0 |        
   31693 | 2023-09-06 21:42:50 |         MASTER-SAAO | (05h 22m 53.84s , -44d 31m 14.2s) |   C |    60 | 18.1 |        
   31774 | 2023-09-06 21:44:10 |         MASTER-SAAO | (05h 11m 33.39s , -48d 20m 35.7s) |   C |    60 | 18.1 |        
   31864 | 2023-09-06 21:45:40 |         MASTER-SAAO | (05h 23m 28.73s , -48d 21m 01.4s) |   C |    60 | 18.3 |        
   31954 | 2023-09-06 21:47:11 |         MASTER-SAAO | (05h 23m 49.01s , -50d 14m 36.8s) |   C |    60 | 18.4 |        
   32033 | 2023-09-06 21:48:30 |         MASTER-SAAO | (05h 36m 16.22s , -50d 12m 36.1s) |   C |    60 | 18.4 |        
   32205 | 2023-09-06 21:51:21 |         MASTER-SAAO | (05h 25m 47.76s , -52d 07m 04.9s) |   C |    60 | 18.5 |        
   32296 | 2023-09-06 21:52:52 |         MASTER-SAAO | (05h 00m 22.53s , -46d 27m 21.6s) |   C |    60 | 18.6 |        
   32375 | 2023-09-06 21:54:12 |         MASTER-SAAO | (05h 11m 57.89s , -46d 25m 48.6s) |   C |    60 | 18.5 |        
   32556 | 2023-09-06 21:57:13 |         MASTER-SAAO | (05h 12m 29.50s , -50d 15m 45.1s) |   C |    60 | 18.6 |        
   32636 | 2023-09-06 21:58:33 |         MASTER-SAAO | (05h 11m 46.10s , -44d 33m 38.8s) |   C |    60 | 18.6 |        
   32728 | 2023-09-06 22:00:05 |         MASTER-SAAO | (05h 22m 55.64s , -44d 31m 28.6s) |   C |    60 | 18.4 |        
   32812 | 2023-09-06 22:01:29 |         MASTER-SAAO | (05h 11m 29.15s , -48d 21m 44.7s) |   C |    60 | 18.6 |        
   32903 | 2023-09-06 22:02:59 |         MASTER-SAAO | (05h 23m 33.45s , -48d 19m 33.7s) |   C |    60 | 18.5 |        
   32982 | 2023-09-06 22:04:19 |         MASTER-SAAO | (05h 23m 43.51s , -50d 14m 16.6s) |   C |    60 | 18.4 |        
   33073 | 2023-09-06 22:05:50 |         MASTER-SAAO | (05h 36m 12.21s , -50d 12m 38.5s) |   C |    60 | 18.5 |        
   33243 | 2023-09-06 22:08:40 |         MASTER-SAAO | (05h 25m 39.45s , -52d 09m 12.5s) |   C |    60 | 18.6 |        
   33333 | 2023-09-06 22:10:09 |         MASTER-SAAO | (05h 22m 26.71s , -46d 25m 43.9s) |   C |    60 | 18.5 |        
   33412 | 2023-09-06 22:11:29 |         MASTER-SAAO | (05h 34m 02.31s , -46d 26m 54.5s) |   C |    60 | 18.4 |        
   33503 | 2023-09-06 22:12:59 |         MASTER-SAAO | (05h 34m 15.92s , -48d 19m 54.9s) |   C |    60 | 18.5 |        
   33583 | 2023-09-06 22:14:19 |         MASTER-SAAO | (05h 46m 17.28s , -48d 18m 19.0s) |   C |    60 | 18.3 |        
   33673 | 2023-09-06 22:15:49 |         MASTER-SAAO | (05h 11m 45.95s , -44d 33m 11.5s) |   C |    60 | 18.3 |        
   33752 | 2023-09-06 22:17:09 |         MASTER-SAAO | (05h 22m 52.29s , -44d 33m 40.5s) |   C |    60 | 18.7 |        
   33832 | 2023-09-06 22:18:29 |         MASTER-SAAO | (05h 33m 00.63s , -44d 31m 29.4s) |   C |    60 | 18.5 |        
   33922 | 2023-09-06 22:19:59 |         MASTER-SAAO | (05h 44m 13.04s , -44d 32m 28.8s) |   C |    60 | 18.3 |        
   34002 | 2023-09-06 22:21:19 |         MASTER-SAAO | (05h 44m 25.45s , -46d 25m 35.7s) |   C |    60 | 18.4 |        
   34267 | 2023-09-06 22:25:43 |         MASTER-SAAO | (05h 00m 40.14s , -48d 22m 31.1s) |   C |    60 | 19.0 |        
   34346 | 2023-09-06 22:27:03 |         MASTER-SAAO | (05h 22m 25.42s , -46d 25m 60.0s) |   C |    60 | 18.7 |        
   34438 | 2023-09-06 22:28:34 |         MASTER-SAAO | (05h 34m 01.22s , -46d 26m 54.3s) |   C |    60 | 18.5 |        
   34517 | 2023-09-06 22:29:54 |         MASTER-SAAO | (05h 34m 20.81s , -48d 19m 19.4s) |   C |    60 | 18.5 |        
   34608 | 2023-09-06 22:31:25 |         MASTER-SAAO | (05h 46m 16.51s , -48d 19m 36.5s) |   C |    60 | 18.4 |        
   34699 | 2023-09-06 22:32:56 |         MASTER-SAAO | (05h 22m 39.34s , -42d 38m 57.1s) |   C |    60 | 18.4 |        
   34870 | 2023-09-06 22:35:47 |         MASTER-SAAO | (05h 33m 01.81s , -44d 33m 02.3s) |   C |    60 | 18.0 |        
   34950 | 2023-09-06 22:37:06 |         MASTER-SAAO | (05h 44m 11.89s , -44d 31m 06.2s) |   C |    60 | 18.4 |        
   35041 | 2023-09-06 22:38:37 |         MASTER-SAAO | (05h 44m 26.60s , -46d 26m 33.9s) |   C |    60 | 18.5 |        
   35302 | 2023-09-06 22:42:58 |         MASTER-SAAO | (05h 00m 32.12s , -48d 21m 08.4s) |   C |    60 | 19.0 |        
   35381 | 2023-09-06 22:44:18 |         MASTER-SAAO | (05h 22m 26.15s , -46d 27m 05.8s) |   C |    60 | 18.9 |        
   35472 | 2023-09-06 22:45:49 |         MASTER-SAAO | (05h 33m 55.94s , -46d 27m 31.5s) |   C |    60 | 18.7 |        
   35552 | 2023-09-06 22:47:08 |         MASTER-SAAO | (05h 34m 18.86s , -48d 21m 28.5s) |   C |    60 | 18.6 |        
   35643 | 2023-09-06 22:48:39 |         MASTER-SAAO | (05h 46m 17.36s , -48d 19m 06.5s) |   C |    60 | 18.6 |        
   35733 | 2023-09-06 22:50:10 |         MASTER-SAAO | (05h 22m 35.31s , -42d 39m 59.0s) |   C |    60 | 18.4 |        
   35904 | 2023-09-06 22:53:00 |         MASTER-SAAO | (05h 32m 55.08s , -44d 32m 41.8s) |   C |    60 | 18.6 |        
   35984 | 2023-09-06 22:54:20 |         MASTER-SAAO | (05h 44m 07.89s , -44d 31m 08.5s) |   C |    60 | 18.6 |        
   36074 | 2023-09-06 22:55:51 |         MASTER-SAAO | (05h 44m 28.39s , -46d 26m 06.8s) |   C |    60 | 18.7 |        
   36325 | 2023-09-06 23:00:02 |         MASTER-SAAO | (05h 00m 33.69s , -48d 21m 37.6s) |   C |    60 | 19.2 |        
   36762 | 2023-09-06 23:07:19 |         MASTER-SAAO | (05h 22m 37.33s , -42d 39m 59.0s) |   C |    60 | 18.9 |        
   36943 | 2023-09-06 23:10:20 |         MASTER-SAAO | (05h 47m 27.54s , -50d 13m 33.7s) |   C |    60 | 18.7 |        
   37967 | 2023-09-06 23:27:23 |         MASTER-SAAO | (05h 47m 21.90s , -50d 14m 58.1s) |   C |    60 | 18.8 |        
   38993 | 2023-09-06 23:44:30 |         MASTER-SAAO | (05h 47m 22.32s , -50d 14m 34.9s) |   C |    60 | 18.8 |        
   62343 | 2023-09-07 06:13:39 |         MASTER-OAFA | (05h 27m 08.97s , -50d 03m 54.9s) |   C |    60 | 18.1 |        
   62695 | 2023-09-07 06:18:32 |         MASTER-OAFA | (05h 19m 13.03s , -49d 03m 08.8s) |   C |   180 | 18.9 |        
   63240 | 2023-09-07 06:27:37 |         MASTER-OAFA | (05h 15m 11.02s , -47d 03m 59.6s) |   C |   180 | 18.9 |        
   63510 | 2023-09-07 06:32:06 |         MASTER-OAFA | (05h 15m 08.29s , -47d 02m 23.3s) |   C |   180 | 19.2 |        
   66084 | 2023-09-07 07:16:01 |         MASTER-OAFA | (05h 27m 13.55s , -50d 01m 53.2s) |   C |    60 | 18.0 |        
   74142 | 2023-09-07 09:29:19 |         MASTER-OAFA | (05h 19m 16.99s , -49d 02m 22.0s) |   C |   180 | 18.9 |        
   74375 | 2023-09-07 09:33:12 |         MASTER-OAFA | (05h 19m 17.21s , -49d 03m 49.7s) |   C |   180 | 18.9 |        
   74669 | 2023-09-07 09:38:06 |         MASTER-OAFA | (05h 23m 14.96s , -50d 02m 02.6s) |   C |   180 | 18.9 |        
   74881 | 2023-09-07 09:41:37 |         MASTER-OAFA | (05h 23m 21.38s , -50d 03m 03.1s) |   C |   180 | 18.9 |        
   75092 | 2023-09-07 09:45:09 |         MASTER-OAFA | (05h 27m 17.56s , -51d 03m 55.3s) |   C |   180 | 18.7 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8831
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 GRB 230906A ( Fermi GBM team, GCN 34631) errorbox  30270 sec after notice time and 30304 sec after trigger time at 2023-09-06 21:20:11 UT, with upper limit up to  18.4 mag. The observations began at zenith distance = 79 deg. The sun  altitude  is -58.8 deg. 

The galactic latitude b = -34 deg., longitude l = 254 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2266531

We obtain a following upper limits.  

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

   30334 | 2023-09-06 21:20:11 |         MASTER-SAAO | (05h 00m 24.99s , -46d 27m 50.7s) |   C |    60 | 18.0 |        
   30505 | 2023-09-06 21:23:02 |         MASTER-SAAO | (05h 12m 37.40s , -50d 13m 19.5s) |   C |    60 | 18.3 |        
   30755 | 2023-09-06 21:27:12 |         MASTER-SAAO | (05h 11m 27.14s , -48d 21m 19.4s) |   C |    60 | 18.4 |        
   30835 | 2023-09-06 21:28:32 |         MASTER-SAAO | (05h 23m 34.07s , -48d 20m 18.0s) |   C |    60 | 18.1 |        
   30927 | 2023-09-06 21:30:03 |         MASTER-SAAO | (05h 23m 47.74s , -50d 14m 12.7s) |   C |    60 | 18.2 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8830
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 GRB 230906A ( Fermi GBM team, GCN 34631) errorbox  30270 sec after notice time and 30304 sec after trigger time at 2023-09-06 21:20:11 UT, with upper limit up to  18.4 mag. The observations began at zenith distance = 79 deg. The sun  altitude  is -58.8 deg. 

The galactic latitude b = -34 deg., longitude l = 254 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2266531

We obtain a following upper limits.  

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

   30334 | 2023-09-06 21:20:11 |         MASTER-SAAO | (05h 00m 24.99s , -46d 27m 50.7s) |   C |    60 | 18.0 |        
   30505 | 2023-09-06 21:23:02 |         MASTER-SAAO | (05h 12m 37.40s , -50d 13m 19.5s) |   C |    60 | 18.3 |        
   30755 | 2023-09-06 21:27:12 |         MASTER-SAAO | (05h 11m 27.14s , -48d 21m 19.4s) |   C |    60 | 18.4 |        
   30835 | 2023-09-06 21:28:32 |         MASTER-SAAO | (05h 23m 34.07s , -48d 20m 18.0s) |   C |    60 | 18.1 |        
   30927 | 2023-09-06 21:30:03 |         MASTER-SAAO | (05h 23m 47.74s , -50d 14m 12.7s) |   C |    60 | 18.2 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8829
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 GRB 230906A ( Fermi GBM team, GCN 34631) errorbox  30270 sec after notice time and 30304 sec after trigger time at 2023-09-06 21:20:11 UT, with upper limit up to  18.4 mag. The observations began at zenith distance = 79 deg. The sun  altitude  is -58.8 deg. 

The galactic latitude b = -34 deg., longitude l = 254 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2266531

We obtain a following upper limits.  

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

   30334 | 2023-09-06 21:20:11 |         MASTER-SAAO | (05h 00m 24.99s , -46d 27m 50.7s) |   C |    60 | 18.0 |        
   30505 | 2023-09-06 21:23:02 |         MASTER-SAAO | (05h 12m 37.40s , -50d 13m 19.5s) |   C |    60 | 18.3 |        
   30755 | 2023-09-06 21:27:12 |         MASTER-SAAO | (05h 11m 27.14s , -48d 21m 19.4s) |   C |    60 | 18.4 |        
   30835 | 2023-09-06 21:28:32 |         MASTER-SAAO | (05h 23m 34.07s , -48d 20m 18.0s) |   C |    60 | 18.1 |        
   30927 | 2023-09-06 21:30:03 |         MASTER-SAAO | (05h 23m 47.74s , -50d 14m 12.7s) |   C |    60 | 18.2 |        
Filter C is a clear (unfiltred) band. 


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

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