GCN Circular 33554
Subject
Fermi GRB 230402A: Global MASTER-Net observations report
Date
2023-04-02T16:45:20Z (a year ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,
G.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin
(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. Gres, N.M. Budnev
(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),
A. Gabovich, V.Yurkov
(Blagoveschensk Educational State University)
MASTER-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB 230402A ( Fermi GBM team, GCN 33553) errorbox 32029 sec after notice time and 32063 sec after trigger time at 2023-04-02 16:26:59 UT, with upper limit up to 15.8 mag. Observations started at twilight. The observations began at zenith distance = 61 deg. The sun altitude is -9.7 deg.
The galactic latitude b = -15 deg., longitude l = 222 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2208192
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
32093 | 2023-04-02 16:26:59 | MASTER-Kislovodsk | (06h 16m 40.71s , -13d 55m 08.5s) | C | 60 | 15.1 |
32093 | 2023-04-02 16:26:59 | MASTER-Kislovodsk | (06h 12m 36.97s , -13d 34m 24.3s) | C | 60 | 14.9 |
32173 | 2023-04-02 16:28:19 | MASTER-Kislovodsk | (06h 20m 08.03s , -15d 50m 10.7s) | C | 60 | 15.3 |
32173 | 2023-04-02 16:28:19 | MASTER-Kislovodsk | (06h 16m 01.99s , -15d 29m 26.3s) | C | 60 | 15.1 |
32254 | 2023-04-02 16:29:39 | MASTER-Kislovodsk | (06h 04m 14.25s , -15d 51m 29.2s) | C | 60 | 15.1 |
32334 | 2023-04-02 16:30:59 | MASTER-Kislovodsk | (06h 13m 51.45s , -12d 03m 02.3s) | C | 60 | 15.4 |
32334 | 2023-04-02 16:30:59 | MASTER-Kislovodsk | (06h 09m 48.34s , -11d 42m 21.4s) | C | 60 | 15.3 |
32414 | 2023-04-02 16:32:19 | MASTER-Kislovodsk | (06h 01m 04.95s , -13d 55m 45.9s) | C | 60 | 15.4 |
32815 | 2023-04-02 16:39:00 | MASTER-Kislovodsk | (06h 16m 46.40s , -13d 56m 31.5s) | C | 60 | 15.8 |
32815 | 2023-04-02 16:39:01 | MASTER-Kislovodsk | (06h 12m 42.92s , -13d 35m 50.8s) | C | 60 | 15.7 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.