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GCN Circular 30102

Subject
Fermi GRB 210529B: Global MASTER-Net observations report
Date
2021-05-30T00:35:27Z (3 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),

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 210529B ( Fermi GBM team, GCN 30101) errorbox  252 sec after notice time and 280 sec after trigger time at 2021-05-29 23:58:17 UT, with upper limit up to  19.1 mag. The observations began at zenith distance =  8 deg. The sun  altitude  is -38.1 deg. 

The galactic latitude b = 57 deg., longitude l = 58 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1624282

We obtain a following upper limits.  

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

     310 | 2021-05-29 23:58:17 |          MASTER-IAC | (15h 17m 31.41s , +35d 28m 38.8s) |   C |    60 | 18.8 |        
     310 | 2021-05-29 23:58:17 |          MASTER-IAC | (15h 07m 30.80s , +35d 34m 29.3s) |   C |    60 | 18.6 |        
     391 | 2021-05-29 23:59:37 |          MASTER-IAC | (15h 21m 01.51s , +37d 22m 04.4s) |   C |    60 | 18.7 |        
     391 | 2021-05-29 23:59:37 |          MASTER-IAC | (15h 10m 46.10s , +37d 28m 00.1s) |   C |    60 | 18.4 |        
     471 | 2021-05-30 00:00:57 |          MASTER-IAC | (15h 33m 13.00s , +33d 34m 59.5s) |   C |    60 | 18.7 |        
     471 | 2021-05-30 00:00:57 |          MASTER-IAC | (15h 23m 25.79s , +33d 40m 54.3s) |   C |    60 | 18.6 |        
     551 | 2021-05-30 00:02:18 |          MASTER-IAC | (15h 15m 03.67s , +33d 34m 18.4s) |   C |    60 | 18.8 |        
     551 | 2021-05-30 00:02:18 |          MASTER-IAC | (15h 05m 16.33s , +33d 40m 11.9s) |   C |    60 | 18.8 |        
     661 | 2021-05-30 00:03:38 |          MASTER-IAC | (15h 19m 11.04s , +36d 24m 22.1s) |  P| |   120 | 18.7 |        
     661 | 2021-05-30 00:03:38 |          MASTER-IAC | (15h 18m 01.83s , +36d 31m 04.7s) |  P- |   120 | 18.4 |        
     816 | 2021-05-30 00:05:57 |          MASTER-IAC | (15h 19m 17.02s , +36d 24m 53.4s) |  P| |   150 | 18.8 |        
     816 | 2021-05-30 00:05:57 |          MASTER-IAC | (15h 18m 08.10s , +36d 31m 35.7s) |  P- |   150 | 18.5 |        
    1001 | 2021-05-30 00:08:47 |          MASTER-IAC | (15h 19m 13.77s , +36d 26m 07.6s) |  P| |   180 | 19.1 |        
    1001 | 2021-05-30 00:08:47 |          MASTER-IAC | (15h 18m 04.84s , +36d 32m 50.5s) |  P- |   180 | 18.7 |        
    1201 | 2021-05-30 00:12:07 |          MASTER-IAC | (15h 19m 13.75s , +36d 24m 33.0s) |  P| |   180 | 19.0 |        
    1201 | 2021-05-30 00:12:07 |          MASTER-IAC | (15h 18m 04.74s , +36d 31m 16.4s) |  P- |   180 | 18.7 |        
    1541 | 2021-05-30 00:18:48 |          MASTER-IAC | (15h 17m 24.50s , +35d 28m 03.3s) |   C |    60 | 18.8 |        
    1541 | 2021-05-30 00:18:48 |          MASTER-IAC | (15h 07m 21.55s , +35d 33m 50.6s) |   C |    60 | 18.6 |        
    1621 | 2021-05-30 00:20:08 |          MASTER-IAC | (15h 21m 02.63s , +37d 23m 00.6s) |   C |    60 | 18.6 |        
    1621 | 2021-05-30 00:20:08 |          MASTER-IAC | (15h 10m 44.61s , +37d 28m 50.2s) |   C |    60 | 18.4 |        
    1701 | 2021-05-30 00:21:28 |          MASTER-IAC | (15h 33m 19.34s , +33d 33m 54.7s) |   C |    60 | 18.7 |        
    1701 | 2021-05-30 00:21:28 |          MASTER-IAC | (15h 23m 29.92s , +33d 39m 42.6s) |   C |    60 | 18.6 |        
    1782 | 2021-05-30 00:22:48 |          MASTER-IAC | (15h 14m 57.26s , +33d 33m 11.5s) |   C |    60 | 18.8 |        
    1782 | 2021-05-30 00:22:48 |          MASTER-IAC | (15h 05m 07.82s , +33d 38m 59.1s) |   C |    60 | 18.8 |        
    1862 | 2021-05-30 00:24:08 |          MASTER-IAC | (15h 25m 57.96s , +39d 15m 20.3s) |   C |    60 | 18.7 |        
    1862 | 2021-05-30 00:24:08 |          MASTER-IAC | (15h 15m 24.33s , +39d 21m 08.8s) |   C |    60 | 18.5 |        
    1942 | 2021-05-30 00:25:29 |          MASTER-IAC | (15h 36m 07.87s , +35d 28m 48.9s) |   C |    60 | 18.8 |        
    1942 | 2021-05-30 00:25:29 |          MASTER-IAC | (15h 26m 05.43s , +35d 34m 35.4s) |   C |    60 | 18.5 |        
    2022 | 2021-05-30 00:26:49 |          MASTER-IAC | (15h 40m 11.85s , +37d 20m 49.6s) |   C |    60 | 18.7 |        
    2022 | 2021-05-30 00:26:49 |          MASTER-IAC | (15h 29m 54.85s , +37d 26m 36.9s) |   C |    60 | 18.5 |        
    2102 | 2021-05-30 00:28:09 |          MASTER-IAC | (15h 06m 20.21s , +39d 17m 14.5s) |   C |    60 | 18.6 |        
    2102 | 2021-05-30 00:28:09 |          MASTER-IAC | (14h 55m 46.53s , +39d 23m 01.4s) |   C |    60 | 18.6 |        
Filter C is a clear (unfiltred) band. 


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