GCN Circular 37901
Subject
Fermi trigger No 751616906: Global MASTER-Net observations report
Date
2024-10-27T04:31:00Z (2 months 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-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB241026.27 (trigger No 751616906,15h 13m 43.92s , -15d 33m 00.0s, R=26.05) errorbox 42116 sec after notice time and 42149 sec after trigger time at 2024-10-26 18:10:50 UT, with upper limit up to 16.7 mag. Observations started at twilight. The observations began at zenith distance = 79 deg. The sun altitude is -15.1 deg.
The galactic latitude b = 35 deg., longitude l = 347 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2649662
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
42179 | 2024-10-26 18:10:50 | MASTER-SAAO | (16h 40m 17.89s , -02d 35m 38.6s) | C | 60 | 14.1 |
42259 | 2024-10-26 18:12:10 | MASTER-SAAO | (16h 48m 09.41s , -02d 37m 08.8s) | C | 60 | 15.1 |
42973 | 2024-10-26 18:24:05 | MASTER-SAAO | (16h 57m 25.22s , -04d 29m 31.4s) | C | 60 | 16.7 |
43535 | 2024-10-26 18:33:27 | MASTER-SAAO | (17h 00m 41.40s , -06d 24m 21.5s) | C | 60 | 16.7 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.