[vsnet-grb-info 27042] Fermi trigger No 630389391: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  29145
SUBJECT: Fermi  trigger No 630389391: Global MASTER-Net observations report 
DATE:    20/12/23 08:15:23 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-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 GRB201223.17 (trigger No 630389391,12h 08m 28.80s , +20d 26m 24.0s, R=2.53) errorbox  9961 sec after notice time and 10053 sec after trigger time at 2020-12-23 06:57:19 UT, with upper limit up to  18.8 mag. The observations began at zenith distance = 73 deg. The sun  altitude  is -25.6 deg. 

The galactic latitude b = 78 deg., longitude l = 248 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1510018

We obtain a following upper limits.  

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

   10083 | 2020-12-23 06:57:19 |         MASTER-OAFA | (11h 58m 55.72s , +22d 50m 13.4s) |   C |    60 | 16.1 |        
   11075 | 2020-12-23 07:13:51 |         MASTER-OAFA | (12h 06m 43.43s , +19d 25m 17.1s) |   C |    60 | 18.7 |        
   11154 | 2020-12-23 07:15:10 |         MASTER-OAFA | (12h 15m 06.56s , +19d 24m 16.1s) |   C |    60 | 18.8 |        
   11234 | 2020-12-23 07:16:30 |         MASTER-OAFA | (11h 59m 15.66s , +21d 24m 46.1s) |   C |    60 | 18.5 |        
   11315 | 2020-12-23 07:17:51 |         MASTER-OAFA | (12h 07m 51.06s , +21d 25m 55.7s) |   C |    60 | 18.6 |        
   11394 | 2020-12-23 07:19:10 |         MASTER-OAFA | (11h 57m 58.88s , +17d 26m 09.8s) |   C |    60 | 18.7 |        
   11553 | 2020-12-23 07:21:49 |         MASTER-OAFA | (12h 16m 27.15s , +21d 24m 19.2s) |   C |    60 | 18.6 |        
   11632 | 2020-12-23 07:23:08 |         MASTER-OAFA | (12h 14m 47.03s , +17d 26m 05.7s) |   C |    60 | 18.8 |        
   11712 | 2020-12-23 07:24:28 |         MASTER-OAFA | (12h 10m 02.08s , +23d 25m 53.2s) |   C |    60 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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