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GCN Circular 27948

Subject
Fermi GRB 200615A: Global MASTER-Net observations report
Date
2020-06-15T10:45:07Z (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-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 GRB 200615A ( Fermi GBM team, GCN 27947) errorbox  13375 sec after notice time and 13402 sec after trigger time at 2020-06-15 09:43:27 UT, with upper limit up to  19.1 mag. The observations began at zenith distance = 77 deg. The sun  altitude  is -22.4 deg. 

The galactic latitude b = -42 deg., longitude l = 175 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1382183

We obtain a following upper limits.  

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

   13433 | 2020-06-15 09:43:27 |         MASTER-OAFA | (03h 39m 17.15s , +01d 56m 03.2s) |   C |    60 | 17.8 |        
   13524 | 2020-06-15 09:44:59 |         MASTER-OAFA | (03h 39m 37.24s , +03d 56m 02.4s) |   C |    60 | 17.8 |        
   13798 | 2020-06-15 09:49:33 |         MASTER-OAFA | (03h 39m 10.24s , +01d 55m 41.9s) |   C |    60 | 17.8 |        
   13981 | 2020-06-15 09:52:35 |         MASTER-OAFA | (03h 39m 37.53s , +03d 57m 28.7s) |   C |    60 | 18.1 |        
   15194 | 2020-06-15 10:11:49 |         MASTER-OAFA | (03h 07m 07.28s , +01d 56m 33.9s) |   C |   180 | 19.1 |        
   15406 | 2020-06-15 10:15:21 |         MASTER-OAFA | (03h 07m 01.99s , +01d 56m 01.1s) |   C |   180 | 19.1 |        
   15558 | 2020-06-15 10:18:53 |         MASTER-OAFA | (03h 06m 59.90s , +03d 57m 00.7s) |   C |    60 | 18.5 |        
   15649 | 2020-06-15 10:20:24 |         MASTER-OAFA | (03h 07m 06.53s , +03d 56m 01.9s) |   C |    60 | 18.3 |        
   15740 | 2020-06-15 10:21:55 |         MASTER-OAFA | (02h 59m 00.18s , +03d 54m 52.2s) |   C |    60 | 18.3 |        
   15832 | 2020-06-15 10:23:26 |         MASTER-OAFA | (02h 59m 05.64s , +03d 55m 00.4s) |   C |    60 | 18.5 |        
   15923 | 2020-06-15 10:24:57 |         MASTER-OAFA | (03h 15m 03.47s , +03d 57m 01.2s) |   C |    60 | 18.0 |        
   16014 | 2020-06-15 10:26:29 |         MASTER-OAFA | (03h 15m 03.40s , +03d 55m 27.9s) |   C |    60 | 17.9 |        
   16105 | 2020-06-15 10:27:59 |         MASTER-OAFA | (03h 15m 06.22s , +01d 56m 57.7s) |   C |    60 | 17.8 |        
   16196 | 2020-06-15 10:29:30 |         MASTER-OAFA | (03h 15m 02.07s , +01d 56m 13.8s) |   C |    60 | 17.8 |        
Filter C is a clear (unfiltred) band. 


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