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GCN Circular 32924

Subject

Swift GRB221110.10: Global MASTER-Net OT detection

Date

2022-11-10T02:45:01Z (2 years ago)

From

Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>

V. Lipunov, E. Gorbovskoy, K.Zhirkov, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov,
D. Vlasenko, G.Antipov, D.Zimnukhov, V.Senik, T.Pogrosheva, E.Minkina,
A.Chasovnikov, V.Topolev, V.Grinshpun, D.Kuvshinov,  D. Cheryasov (Lomonosov
Moscow State University, SAI, Physics Department),

R. Rebolo, M. Serra
(The Instituto de Astrofisica de Canarias),

D. Buckley
(South African Astronomical Observatory),

R. Podesta, C.Lopez, F. Podesta, C.Francile
(Observatorio Astronomico Felix Aguilar OAFA),

O.A. Gres, N.M. Budnev
(Irkutsk State University, API),

A. Tlatov, D. Dormidontov
(Kislovodsk Solar Station of the Pulkovo Observatory),

V. Yurkov, A. Gabovich
(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) was pointed to the  GRB221110.10 49 sec after notice time and 68 sec after trigger time at 2022-11-10 02:29:26 UT. On our first (10s exposure)  set we  found 1 optical transient within Swift error-box (ra=29.1125 dec=-27.3139 r=0.05) brighter than  16.5.


 T-Tmid      Date      Time       Expt.        Ra                Dec           Mag
---------|---------------------|-------|-----------------|-----------------|-------
      73   2022-11-10 02:29:26      10   (01h 56m 23.64s , -27d 17m 44.8s)     15.5

The 5-sigma upper limit has been about  16.5mag
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