Back
GCN Circular 38152

Subject
Integral GRB241109.89: Global MASTER-Net observations report
Date
2024-11-10T06:57:41Z (a month ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
legacy email
V.Lipunov, E.Gorbovskoy, N.Tiurina,  P.Balanutsa, , D.Vlasenko, I.Panchenko,
A.Kuznetsov,  G.Antipov,  A.Sankovich, A.Sosnovskij, Yu.Tselik, M.Gulyaev, Ya.Kechin,
V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU),
O.Gress, N.Budnev (ISU),
C.Francile,  F. Podesta, R.Podesta, E. Gonzalez  (Observatorio Astronomico Felix Aguilar (OAFA),
A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),
A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity)
D.Buckley (SAAO),
R.Rebolo (The Instituto de Astrofisica de Canarias),
L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,
A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory) 

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 Integral GRB241109.89 (trigger No 10977,18h 41m 18.94s , -04d 57m 00.0s, R=0.0492) errorbox  10450 sec after notice time and 10459 sec after trigger time at 2024-11-10 00:19:23 UT, with upper limit up to  17.2 mag. Observations started at twilight.  The observations began at zenith distance = 67 deg. The sun  altitude  is -15.1 deg. 

The galactic latitude b = -1 deg., longitude l = 28 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2663731

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

   10464 |         MASTER-OAFA |   C |    10 | 16.8 |        
   10508 |         MASTER-OAFA |   C |    15 | 16.9 |        
   10558 |         MASTER-OAFA |   C |    30 | 17.0 |        
   10603 |         MASTER-OAFA |   C |    30 | 17.0 |        
   10650 |         MASTER-OAFA |   C |    30 | 17.0 |        
   10685 |         MASTER-OAFA |   C |    30 | 17.0 |        
   10721 |         MASTER-OAFA |   C |    30 | 17.0 |        
   10780 |         MASTER-OAFA |   C |    60 | 17.2 |        
   10846 |         MASTER-OAFA |   C |    60 | 17.2 |        
Filter C is a clear (unfiltred) band. 


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