[vsnet-grb-info 25408] Fermi GRB 200407A: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  27508
SUBJECT: Fermi GRB 200407A: Global MASTER-Net observations report 
DATE:    20/04/08 03:45:08 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-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 200407A ( Fermi GBM team, GCN 27502) errorbox  71781 sec after notice time and 71810 sec after trigger time at 2020-04-08 02:18:51 UT, with upper limit up to  17.3 mag. Observations started at twilight.  The observations began at zenith distance = 43 deg. The sun  altitude  is -10.0 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB 200407A errorbox  73424 sec after notice time and 73453 sec after trigger time at 2020-04-08 02:46:14 UT, with upper limit up to  19.0 mag. The observations began at zenith distance = 42 deg. The sun  altitude  is -28.0 deg. 

The galactic latitude b =  7 deg., longitude l = 35 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1331640

We obtain a following upper limits.  

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

   71840 | 2020-04-08 02:18:51 |      MASTER-Tavrida | (18h 24m 07.18s , +02d 04m 24.6s) |   C |    60 | 17.3 |        
   71922 | 2020-04-08 02:20:13 |      MASTER-Tavrida | (18h 26m 04.20s , +04d 04m 46.0s) |   C |    60 | 17.1 |        
   72002 | 2020-04-08 02:21:33 |      MASTER-Tavrida | (18h 40m 01.92s , +02d 02m 23.3s) |   C |    60 | 17.3 |        
   72083 | 2020-04-08 02:22:54 |      MASTER-Tavrida | (18h 42m 09.65s , +04d 04m 08.4s) |   C |    60 | 16.6 |        
   73483 | 2020-04-08 02:46:14 |         MASTER-SAAO | (18h 32m 17.25s , +06d 02m 07.6s) |   C |    60 | 18.0 |        
   73485 | 2020-04-08 02:46:16 |         MASTER-SAAO | (18h 25m 13.14s , +06d 01m 29.1s) |   C |    60 | 18.4 |        
   73563 | 2020-04-08 02:47:34 |         MASTER-SAAO | (18h 42m 14.60s , +00d 01m 03.1s) |   C |    60 | 18.5 |        
   73565 | 2020-04-08 02:47:36 |         MASTER-SAAO | (18h 35m 12.38s , +00d 00m 22.6s) |   C |    60 | 18.8 |        
   73643 | 2020-04-08 02:48:54 |         MASTER-SAAO | (18h 26m 09.48s , +00d 00m 01.7s) |   C |    60 | 19.0 |        
   73644 | 2020-04-08 02:48:55 |         MASTER-SAAO | (18h 19m 07.13s , -00d 00m 41.0s) |   C |    60 | 18.9 |        
   73723 | 2020-04-08 02:50:14 |         MASTER-SAAO | (18h 26m 56.94s , -01d 59m 42.6s) |   C |    60 | 19.0 |        
   73724 | 2020-04-08 02:50:15 |         MASTER-SAAO | (18h 19m 54.16s , -02d 00m 26.0s) |   C |    60 | 19.0 |        
   73802 | 2020-04-08 02:51:33 |         MASTER-SAAO | (18h 32m 20.77s , +06d 01m 54.1s) |   C |    60 | 18.0 |        
   73804 | 2020-04-08 02:51:35 |         MASTER-SAAO | (18h 25m 16.17s , +06d 01m 08.2s) |   C |    60 | 18.4 |        
   73882 | 2020-04-08 02:52:53 |         MASTER-SAAO | (18h 42m 13.17s , +00d 00m 21.9s) |   C |    60 | 18.6 |        
   73883 | 2020-04-08 02:52:54 |         MASTER-SAAO | (18h 35m 10.60s , -00d 00m 23.7s) |   C |    60 | 18.8 |        
   73962 | 2020-04-08 02:54:13 |         MASTER-SAAO | (18h 26m 17.09s , +00d 01m 49.6s) |   C |    60 | 19.0 |        
   73963 | 2020-04-08 02:54:14 |         MASTER-SAAO | (18h 19m 14.43s , +00d 01m 02.6s) |   C |    60 | 18.9 |        
   74042 | 2020-04-08 02:55:33 |         MASTER-SAAO | (18h 26m 49.97s , -01d 59m 03.8s) |   C |    60 | 19.0 |        
   74043 | 2020-04-08 02:55:34 |         MASTER-SAAO | (18h 19m 46.93s , -01d 59m 51.0s) |   C |    60 | 19.0 |        
   74121 | 2020-04-08 02:56:52 |         MASTER-SAAO | (18h 42m 50.82s , -01d 58m 11.5s) |   C |    60 | 18.1 |        
   74123 | 2020-04-08 02:56:54 |         MASTER-SAAO | (18h 35m 47.78s , -01d 58m 58.9s) |   C |    60 | 18.4 |        
   74201 | 2020-04-08 02:58:12 |         MASTER-SAAO | (18h 37m 12.32s , +08d 00m 53.1s) |   C |    60 | 17.6 |        
   74203 | 2020-04-08 02:58:14 |         MASTER-SAAO | (18h 30m 05.81s , +08d 00m 03.3s) |   C |    60 | 18.1 |        
   74281 | 2020-04-08 02:59:32 |         MASTER-SAAO | (18h 48m 23.04s , +05d 59m 52.9s) |   C |    60 | 18.5 |        
   74282 | 2020-04-08 02:59:33 |         MASTER-SAAO | (18h 41m 18.29s , +05d 59m 03.7s) |   C |    60 | 18.1 |        
   74362 | 2020-04-08 03:00:53 |         MASTER-SAAO | (18h 05m 53.92s , +03d 59m 33.9s) |   C |    60 | 18.8 |        
Filter C is a clear (unfiltred) band. 


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