[vsnet-grb-info 24743] Fermi trigger No 601254300: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  26842
SUBJECT: Fermi  trigger No 601254300: Global MASTER-Net observations report 
DATE:    20/01/21 19:31:08 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),

H.Levato 
(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),

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-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 GRB200120.96 (trigger No 601254300,09h 17m 28.80s , -70d 41m 24.0s, R=1) errorbox  70747 sec after trigger time at 2020-01-21 18:44:03 UT, with upper limit up to  18.4 mag. Observations started at twilight.  The observations began at zenith distance = 56 deg. The sun  altitude  is -11.5 deg. 

The galactic latitude b = -15 deg., longitude l = 287 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1264783

We obtain a following upper limits.  

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

   70778 | 2020-01-21 18:44:03 |         MASTER-SAAO | (09h 17m 08.06s , -69d 53m 15.6s) |   C |    60 | 17.2 |        
   70872 | 2020-01-21 18:45:36 |         MASTER-SAAO | (09h 17m 02.32s , -69d 54m 14.4s) |   C |    60 | 17.5 |        
   70967 | 2020-01-21 18:47:12 |         MASTER-SAAO | (09h 24m 45.63s , -71d 52m 29.3s) |   C |    60 | 17.5 |        
   71063 | 2020-01-21 18:48:48 |         MASTER-SAAO | (09h 11m 25.62s , -67d 52m 41.9s) |   C |    60 | 17.3 |        
   71159 | 2020-01-21 18:50:24 |         MASTER-SAAO | (09h 17m 04.39s , -69d 53m 11.0s) |   C |    60 | 17.3 |        
   71257 | 2020-01-21 18:52:02 |         MASTER-SAAO | (09h 40m 15.78s , -69d 52m 01.6s) |   C |    60 | 17.7 |        
   71353 | 2020-01-21 18:53:38 |         MASTER-SAAO | (09h 24m 51.85s , -71d 53m 02.9s) |   C |    60 | 15.6 |        
   71451 | 2020-01-21 18:55:15 |         MASTER-SAAO | (09h 50m 26.25s , -71d 53m 55.2s) |   C |    60 | 16.7 |        
   71549 | 2020-01-21 18:56:53 |         MASTER-SAAO | (09h 11m 28.74s , -67d 53m 43.7s) |   C |    60 | 17.1 |        
   71741 | 2020-01-21 19:00:06 |         MASTER-SAAO | (09h 40m 22.58s , -69d 53m 44.4s) |   C |    60 | 17.2 |        
   71843 | 2020-01-21 19:01:48 |         MASTER-SAAO | (09h 50m 32.83s , -71d 52m 11.5s) |   C |    60 | 17.3 |        
   72438 | 2020-01-21 19:11:43 |         MASTER-SAAO | (08h 59m 12.03s , -71d 53m 16.3s) |   C |    60 | 18.3 |        
   72634 | 2020-01-21 19:14:59 |         MASTER-SAAO | (08h 54m 06.00s , -69d 53m 22.7s) |   C |    60 | 15.4 |        
   72929 | 2020-01-21 19:19:54 |         MASTER-SAAO | (08h 59m 18.22s , -71d 52m 40.1s) |   C |    60 | 18.3 |        
   73025 | 2020-01-21 19:21:29 |         MASTER-SAAO | (08h 54m 04.88s , -69d 54m 17.6s) |   C |    60 | 18.4 |        
Filter C is a clear (unfiltred) band. 


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