Skip to main content
New! October 18 GCN Classic Outage and Schema v4.2.0. See news and announcements

GCN Circular 37851

Subject
Fermi trigger No 751449953: Global MASTER-Net observations report
Date
2024-10-24T08:31:56Z (9 days 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-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) started inspect of the Fermi GRB241024.34 (trigger No 751449953,07h 42m 55.20s , -23d 33m 36.0s, R=4.02) errorbox  182 sec after notice time and 205 sec after trigger time at 2024-10-24 08:09:14 UT, with upper limit up to  19.1 mag. The observations began at zenith distance = 27 deg. The sun  altitude  is -20.1 deg. 

The galactic latitude b =  0 deg., longitude l = 240 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2647890

We obtain a following upper limits.  

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

     226 | 2024-10-24 08:09:14 |         MASTER-OAFA | (07h 40m 11.71s , -22d 15m 09.8s) |   C |    40 | 19.1 |        
     277 | 2024-10-24 08:10:00 |         MASTER-OAFA | (07h 40m 11.87s , -22d 15m 08.4s) |   C |    50 | 19.1 |        
     338 | 2024-10-24 08:11:16 |         MASTER-OAFA | (07h 40m 11.91s , -22d 15m 06.7s) |   C |    20 | 18.8 |        
Filter C is a clear (unfiltred) band. 


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


Looking for U.S. government information and services? Visit USA.gov