Back
GCN Circular 37977

Subject
Fermi GRB 241030A: Global MASTER-Net observations report
Date
2024-10-30T17:00:59Z (a month ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
legacy email
V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik,  D. Vlasenko,
G.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij
(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. Gress, N.M. Budnev, O.Ershova
(Irkutsk State University, API),

L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,
A.R.Corella, L.H.Rodriguez
(INAOE, Guillermo Haro Astrophysics Observatory),

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

V. Yurkov, A. Gabovich
(Blagoveschensk Educational State University)

MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 241030A ( Fermi GBM team, GCN 37955Loading...
 
 ) errorbox  36315 sec after notice time and 36349 sec after trigger time at 2024-10-30 15:53:52 UT, with upper limit up to  18.1 mag. Observations started at twilight.  The observations began at zenith distance = 38 deg. The sun  altitude  is -14.6 deg. 

The galactic latitude b = 18 deg., longitude l = 115 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2653574

We obtain a following upper limits.  

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

   36440 | 2024-10-30 15:53:52 |      MASTER-Tavrida | (22h 52m 47.54s , +80d 11m 32.7s) |   C |   180 | 18.0 |        
   36440 | 2024-10-30 15:53:53 |      MASTER-Tavrida | (22h 53m 03.69s , +80d 16m 00.2s) |   C |   180 | 18.1 |        
   36632 | 2024-10-30 15:57:05 |      MASTER-Tavrida | (22h 52m 52.55s , +80d 10m 19.5s) |   C |   180 | 13.8 |        
   36632 | 2024-10-30 15:57:05 |      MASTER-Tavrida | (22h 53m 07.57s , +80d 14m 46.7s) |   C |   180 | 13.7 |        
Filter C is a clear (unfiltred) band. 


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