[vsnet-grb-info 25394] Fermi GRB 200403C: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  27494
SUBJECT: Fermi GRB 200403C: Global MASTER-Net observations report 
DATE:    20/04/04 18:15:07 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-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB 200403C ( Fermi GBM team, GCN 27489) errorbox  62342 sec after notice time and 62370 sec after trigger time at 2020-04-04 16:41:27 UT, with upper limit up to  17.3 mag. Observations started at twilight.  The observations began at zenith distance = 68 deg. The sun  altitude  is -11.6 deg. 

The galactic latitude b = -32 deg., longitude l = 163 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1329210

We obtain a following upper limits.  

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

   62401 | 2020-04-04 16:41:27 |   MASTER-Kislovodsk | (03h 11m 42.15s , +19d 58m 00.3s) |   C |    60 | 16.7 |        
   62401 | 2020-04-04 16:41:27 |   MASTER-Kislovodsk | (03h 03m 13.52s , +20d 24m 11.0s) |   C |    60 | 16.7 |        
   62642 | 2020-04-04 16:45:29 |   MASTER-Kislovodsk | (03h 28m 50.74s , +19d 56m 42.9s) |   C |    60 | 17.0 |        
   62642 | 2020-04-04 16:45:29 |   MASTER-Kislovodsk | (03h 20m 20.50s , +20d 22m 48.3s) |   C |    60 | 17.0 |        
   62722 | 2020-04-04 16:46:49 |   MASTER-Kislovodsk | (03h 11m 45.22s , +19d 57m 25.2s) |   C |    60 | 17.0 |        
   62722 | 2020-04-04 16:46:49 |   MASTER-Kislovodsk | (03h 03m 16.81s , +20d 23m 27.9s) |   C |    60 | 17.0 |        
   62978 | 2020-04-04 16:51:05 |   MASTER-Kislovodsk | (03h 28m 45.82s , +19d 57m 12.6s) |   C |    60 | 17.1 |        
   62978 | 2020-04-04 16:51:05 |   MASTER-Kislovodsk | (03h 20m 15.83s , +20d 23m 15.2s) |   C |    60 | 17.3 |        
   63058 | 2020-04-04 16:52:25 |   MASTER-Kislovodsk | (03h 14m 17.49s , +21d 57m 37.1s) |   C |    60 | 16.9 |        
   63058 | 2020-04-04 16:52:25 |   MASTER-Kislovodsk | (03h 05m 41.29s , +22d 23m 38.2s) |   C |    60 | 17.0 |        
   63139 | 2020-04-04 16:53:46 |   MASTER-Kislovodsk | (03h 26m 22.18s , +17d 56m 59.2s) |   C |    60 | 16.9 |        
   63139 | 2020-04-04 16:53:46 |   MASTER-Kislovodsk | (03h 17m 59.46s , +18d 22m 59.6s) |   C |    60 | 17.0 |        
   63219 | 2020-04-04 16:55:06 |   MASTER-Kislovodsk | (03h 31m 31.08s , +21d 56m 01.3s) |   C |    60 | 17.3 |        
   63219 | 2020-04-04 16:55:06 |   MASTER-Kislovodsk | (03h 22m 53.40s , +22d 22m 04.8s) |   C |    60 | 17.2 |        
   63300 | 2020-04-04 16:56:27 |   MASTER-Kislovodsk | (03h 17m 15.19s , +23d 55m 48.4s) |   C |    60 | 16.6 |        
   63300 | 2020-04-04 16:56:27 |   MASTER-Kislovodsk | (03h 08m 30.41s , +24d 21m 49.5s) |   C |    60 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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