[vsnet-grb-info 25777] Fermi GRB 200601A: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  27877
SUBJECT: Fermi GRB 200601A: Global MASTER-Net observations report 
DATE:    20/06/01 05:15:07 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-IAC robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB 200601A ( Fermi GBM team, GCN 27876) errorbox  8734 sec after notice time and 8763 sec after trigger time at 2020-06-01 04:45:53 UT, with upper limit up to  17.6 mag. Observations started at twilight.  The observations began at zenith distance = 72 deg. The sun  altitude  is -16.1 deg. 

The galactic latitude b = -26 deg., longitude l = 122 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1370430

We obtain a following upper limits.  

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

    8794 | 2020-06-01 04:45:53 |          MASTER-IAC | (02h 08m 25.01s , +33d 54m 13.3s) |   C |    60 | 17.5 |        
    8794 | 2020-06-01 04:45:53 |          MASTER-IAC | (02h 18m 15.55s , +33d 49m 56.3s) |   C |    60 | 16.7 |        
    8919 | 2020-06-01 04:47:58 |          MASTER-IAC | (02h 11m 40.38s , +35d 55m 25.3s) |   C |    60 | 17.5 |        
    8919 | 2020-06-01 04:47:58 |          MASTER-IAC | (02h 21m 45.69s , +35d 51m 10.0s) |   C |    60 | 17.0 |        
    9037 | 2020-06-01 04:49:57 |          MASTER-IAC | (02h 05m 27.38s , +31d 54m 52.6s) |   C |    60 | 17.6 |        
    9038 | 2020-06-01 04:49:57 |          MASTER-IAC | (02h 15m 04.89s , +31d 50m 35.2s) |   C |    60 | 16.8 |        
    9398 | 2020-06-01 04:55:58 |          MASTER-IAC | (02h 08m 21.31s , +33d 53m 58.1s) |   C |    60 | 17.3 |        
    9398 | 2020-06-01 04:55:58 |          MASTER-IAC | (02h 18m 11.77s , +33d 49m 43.5s) |   C |    60 | 16.7 |        
    9517 | 2020-06-01 04:57:56 |          MASTER-IAC | (02h 11m 40.42s , +35d 54m 00.0s) |   C |    60 | 17.2 |        
    9517 | 2020-06-01 04:57:56 |          MASTER-IAC | (02h 21m 45.36s , +35d 49m 46.7s) |   C |    60 | 16.7 |        
    9637 | 2020-06-01 04:59:56 |          MASTER-IAC | (02h 15m 07.94s , +31d 51m 13.5s) |   C |    60 | 16.5 |        
    9763 | 2020-06-01 05:02:03 |          MASTER-IAC | (02h 21m 20.94s , +29d 54m 07.3s) |   C |    60 | 16.7 |        
    9763 | 2020-06-01 05:02:03 |          MASTER-IAC | (02h 30m 46.39s , +29d 49m 46.6s) |   C |    60 | 14.5 |        
    9879 | 2020-06-01 05:03:59 |          MASTER-IAC | (02h 15m 12.84s , +37d 55m 29.6s) |   C |    60 | 16.6 |        
    9879 | 2020-06-01 05:03:59 |          MASTER-IAC | (02h 25m 33.63s , +37d 51m 16.9s) |   C |    60 | 16.0 |        
    9997 | 2020-06-01 05:05:56 |          MASTER-IAC | (02h 02m 50.92s , +29d 54m 53.3s) |   C |    60 | 16.8 |        
    9997 | 2020-06-01 05:05:56 |          MASTER-IAC | (02h 12m 15.86s , +29d 50m 37.2s) |   C |    60 | 16.0 |        
   10116 | 2020-06-01 05:07:56 |          MASTER-IAC | (02h 21m 17.05s , +29d 56m 07.0s) |   C |    60 | 16.2 |        
   10116 | 2020-06-01 05:07:56 |          MASTER-IAC | (02h 30m 42.39s , +29d 51m 47.8s) |   C |    60 | 15.5 |        
   10247 | 2020-06-01 05:10:06 |          MASTER-IAC | (02h 15m 13.90s , +37d 54m 53.3s) |   C |    60 | 16.3 |        
Filter C is a clear (unfiltred) band. 


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