[vsnet-grb-info 26379] Fermi GRB 200922B: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28479
SUBJECT: Fermi GRB 200922B: Global MASTER-Net observations report 
DATE:    20/09/23 02:45:16 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at xray.sai.msu.ru>

V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, 
V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva,
D.Kuvshinov,  D. Cheryasov
(Lomonosov Moscow State University, SAI, Physics Department),

R. Podesta, C.Lopez, F. Podesta, C.Francile 
(Observatorio Astronomico Felix Aguilar OAFA),

R. Rebolo, M. Serra 
(The Instituto de Astrofisica de Canarias),

D. Buckley 
(South African Astronomical Observatory),

O.A. Gres, N.M. Budnev, O.Ershova 
(Irkutsk State University, API),

A. Tlatov, D. Dormidontov 
(Kislovodsk Solar Station of the Pulkovo Observatory),

V. Yurkov, A. Gabovich, Yu. Sergienko 
(Blagoveschensk Educational State University)




MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 200922B ( Fermi GBM team, GCN 28474) errorbox  21798 sec after notice time and 21839 sec after trigger time at 2020-09-23 00:08:23 UT, with upper limit up to  18.4 mag. The observations began at zenith distance = 68 deg. The sun  altitude  is -34.4 deg. 

The galactic latitude b = 41 deg., longitude l = 199 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1446888

We obtain a following upper limits.  

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

   21870 | 2020-09-23 00:08:23 |      MASTER-Tavrida | (08h 36m 30.75s , +34d 09m 50.2s) |   C |    60 | 16.6 |        
   23399 | 2020-09-23 00:33:53 |      MASTER-Tavrida | (08h 36m 23.42s , +34d 10m 38.4s) |   C |    60 | 17.2 |        
   23479 | 2020-09-23 00:35:13 |      MASTER-Tavrida | (08h 46m 03.52s , +34d 11m 46.5s) |   C |    60 | 17.3 |        
   24445 | 2020-09-23 00:51:19 |      MASTER-Tavrida | (08h 46m 05.47s , +34d 11m 44.6s) |   C |    60 | 17.3 |        
   24928 | 2020-09-23 00:59:22 |      MASTER-Tavrida | (08h 22m 53.43s , +28d 10m 32.3s) |   C |    60 | 17.5 |        
   25090 | 2020-09-23 01:02:04 |      MASTER-Tavrida | (08h 31m 56.63s , +26d 09m 57.6s) |   C |    60 | 17.3 |        
   25412 | 2020-09-23 01:07:26 |      MASTER-Tavrida | (08h 33m 24.20s , +22d 09m 32.1s) |   C |    60 | 15.9 |        
   25574 | 2020-09-23 01:10:08 |      MASTER-Tavrida | (08h 41m 12.35s , +24d 11m 36.8s) |   C |    60 | 16.7 |        
   26138 | 2020-09-23 01:19:31 |      MASTER-Tavrida | (08h 32m 21.69s , +24d 10m 00.1s) |   C |    60 | 17.7 |        
   26218 | 2020-09-23 01:20:52 |      MASTER-Tavrida | (08h 22m 58.97s , +28d 11m 40.2s) |   C |    60 | 17.6 |        
   26299 | 2020-09-23 01:22:12 |      MASTER-Tavrida | (08h 31m 57.34s , +28d 10m 57.1s) |   C |    60 | 17.5 |        
   26540 | 2020-09-23 01:26:14 |      MASTER-Tavrida | (08h 31m 49.14s , +26d 09m 56.2s) |   C |    60 | 17.8 |        
   26620 | 2020-09-23 01:27:34 |      MASTER-Tavrida | (08h 40m 50.75s , +26d 10m 29.9s) |   C |    60 | 17.5 |        
   27023 | 2020-09-23 01:34:17 |      MASTER-Tavrida | (08h 33m 22.71s , +22d 11m 58.5s) |   C |    60 | 17.6 |        
   27103 | 2020-09-23 01:35:37 |      MASTER-Tavrida | (08h 42m 06.53s , +22d 11m 02.7s) |   C |    60 | 17.6 |        
   27345 | 2020-09-23 01:39:38 |      MASTER-Tavrida | (08h 41m 06.24s , +24d 11m 41.3s) |   C |    60 | 17.7 |        
   27425 | 2020-09-23 01:40:59 |      MASTER-Tavrida | (08h 49m 52.69s , +24d 10m 39.1s) |   C |    60 | 17.5 |        
   27747 | 2020-09-23 01:46:21 |      MASTER-Tavrida | (08h 32m 23.48s , +24d 11m 10.4s) |   C |    60 | 18.1 |        
   27828 | 2020-09-23 01:47:41 |      MASTER-Tavrida | (08h 31m 55.23s , +28d 10m 16.6s) |   C |    60 | 17.7 |        
   27989 | 2020-09-23 01:50:22 |      MASTER-Tavrida | (08h 40m 45.11s , +26d 12m 11.2s) |   C |    60 | 17.7 |        
   28557 | 2020-09-23 01:59:51 |      MASTER-Tavrida | (08h 41m 55.78s , +22d 12m 24.1s) |   C |    60 | 18.0 |        
   28718 | 2020-09-23 02:02:32 |      MASTER-Tavrida | (08h 49m 45.23s , +24d 10m 33.2s) |   C |    60 | 17.9 |        
   28799 | 2020-09-23 02:03:52 |      MASTER-Tavrida | (08h 32m 38.80s , +30d 12m 09.9s) |   C |    60 | 18.4 |        
   28960 | 2020-09-23 02:06:33 |      MASTER-Tavrida | (08h 40m 53.70s , +28d 12m 34.6s) |   C |    60 | 18.2 |        
   29281 | 2020-09-23 02:11:55 |      MASTER-Tavrida | (08h 32m 35.75s , +30d 11m 37.1s) |   C |    60 | 18.3 |        
   29362 | 2020-09-23 02:13:16 |      MASTER-Tavrida | (08h 41m 51.02s , +30d 12m 44.8s) |   C |    60 | 18.4 |        
   29603 | 2020-09-23 02:17:17 |      MASTER-Tavrida | (08h 41m 00.02s , +28d 11m 02.3s) |   C |    60 | 18.1 |        
   29684 | 2020-09-23 02:18:37 |      MASTER-Tavrida | (08h 50m 01.33s , +28d 12m 31.5s) |   C |    60 | 18.1 |        
   29845 | 2020-09-23 02:21:18 |      MASTER-Tavrida | (08h 34m 06.10s , +32d 12m 22.7s) |   C |    60 | 18.1 |        
   30246 | 2020-09-23 02:28:00 |      MASTER-Tavrida | (08h 41m 55.45s , +30d 11m 23.4s) |   C |    60 | 17.9 |        
   30407 | 2020-09-23 02:30:41 |      MASTER-Tavrida | (08h 50m 00.34s , +28d 11m 00.9s) |   C |    60 | 17.7 |        
   30488 | 2020-09-23 02:32:02 |      MASTER-Tavrida | (08h 34m 05.77s , +32d 12m 41.2s) |   C |    60 | 17.5 |        
   30971 | 2020-09-23 02:40:04 |      MASTER-Tavrida | (08h 49m 29.25s , +26d 13m 02.7s) |   C |    60 | 16.7 |        
Filter C is a clear (unfiltred) band. 


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