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GCN Circular 27762

Subject
Fermi trigger No 611605955: Global MASTER-Net observations report
Date
2020-05-19T22:30:31Z (4 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@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 GRB200519.77 (trigger No 611605955,19h 35m 52.08s , +29d 58m 58.8s, R=20.53) errorbox  10618 sec after notice time and 10652 sec after trigger time at 2020-05-19 21:30:03 UT, with upper limit up to  17.5 mag. The observations began at zenith distance = 74 deg. The sun  altitude  is -71.1 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB200519.77 errorbox  12151 sec after notice time and 12185 sec after trigger time at 2020-05-19 21:55:36 UT, with upper limit up to  17.7 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -24.6 deg. 

The galactic latitude b =  4 deg., longitude l = 65 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1360824

We obtain a following upper limits.  

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

   10682 | 2020-05-19 21:30:03 |         MASTER-SAAO | (18h 56m 41.29s , +10d 02m 51.8s) |   C |    60 | 17.1 |        
   10682 | 2020-05-19 21:30:03 |         MASTER-SAAO | (18h 58m 50.58s , +10d 02m 53.3s) |   C |    60 | 16.8 |        
   10762 | 2020-05-19 21:31:22 |         MASTER-SAAO | (18h 48m 02.67s , +12d 01m 43.0s) |   C |    60 | 17.1 |        
   10762 | 2020-05-19 21:31:22 |         MASTER-SAAO | (18h 50m 12.80s , +12d 01m 44.4s) |   C |    60 | 16.7 |        
   11001 | 2020-05-19 21:35:21 |         MASTER-SAAO | (18h 56m 35.27s , +10d 03m 28.5s) |   C |    60 | 17.1 |        
   11001 | 2020-05-19 21:35:21 |         MASTER-SAAO | (18h 58m 44.60s , +10d 03m 30.7s) |   C |    60 | 17.1 |        
   11081 | 2020-05-19 21:36:41 |         MASTER-SAAO | (18h 48m 02.22s , +12d 02m 33.9s) |   C |    60 | 17.2 |        
   11081 | 2020-05-19 21:36:41 |         MASTER-SAAO | (18h 50m 12.44s , +12d 02m 36.4s) |   C |    60 | 17.0 |        
   11321 | 2020-05-19 21:40:41 |         MASTER-SAAO | (19h 04m 30.14s , +12d 02m 24.0s) |   C |    60 | 16.9 |        
   11321 | 2020-05-19 21:40:41 |         MASTER-SAAO | (19h 06m 40.28s , +12d 02m 26.2s) |   C |    60 | 16.4 |        
   11401 | 2020-05-19 21:42:01 |         MASTER-SAAO | (18h 57m 15.82s , +14d 00m 50.5s) |   C |    60 | 17.5 |        
   11401 | 2020-05-19 21:42:01 |         MASTER-SAAO | (18h 59m 27.03s , +14d 00m 52.2s) |   C |    60 | 17.2 |        
   11481 | 2020-05-19 21:43:21 |         MASTER-SAAO | (19h 13m 02.31s , +10d 02m 31.9s) |   C |    60 | 17.3 |        
   11481 | 2020-05-19 21:43:21 |         MASTER-SAAO | (19h 15m 11.63s , +10d 02m 34.7s) |   C |    60 | 16.7 |        
   11780 | 2020-05-19 21:48:20 |         MASTER-SAAO | (19h 04m 20.17s , +12d 02m 40.6s) |   C |    60 | 16.9 |        
   11780 | 2020-05-19 21:48:20 |         MASTER-SAAO | (19h 06m 30.59s , +12d 02m 48.2s) |   C |    60 | 16.7 |        
   11860 | 2020-05-19 21:49:40 |         MASTER-SAAO | (18h 59m 24.83s , +14d 01m 48.2s) |   C |    60 | 17.3 |        
   12215 | 2020-05-19 21:55:36 |          MASTER-IAC | (18h 20m 54.03s , +20d 01m 00.1s) |   C |    60 | 17.6 |        
   13776 | 2020-05-19 22:21:36 |          MASTER-IAC | (18h 20m 58.11s , +19d 59m 32.5s) |   C |    60 | 17.7 |        
   13776 | 2020-05-19 22:21:36 |          MASTER-IAC | (18h 29m 34.72s , +19d 54m 49.2s) |   C |    60 | 14.2 |        
   13895 | 2020-05-19 22:23:35 |          MASTER-IAC | (18h 35m 34.72s , +14d 00m 37.1s) |   C |    60 | 17.3 |        
Filter C is a clear (unfiltred) band. 


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