TITLE: GCN CIRCULAR NUMBER: 39349 SUBJECT: Fermi GRB 250216A: Global MASTER-Net observations report DATE: 25/02/16 23:02:13 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs lipunov@xray.sai.msu.ru
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-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 250216A ( Fermi GBM team, GCN 39347) errorbox 7487 sec after notice time and 7522 sec after trigger time at 2025-02-16 22:26:06 UT, with upper limit up to 17.5 mag. The observations began at zenith distance = 32 deg. The sun altitude is -56.4 deg.
The galactic latitude b = 54 deg., longitude l = 106 deg.
Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2780267
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________
7553 | 2025-02-16 22:26:06 | MASTER-Kislovodsk | (14h 04m 27.49s , +60d 18m 33.1s) | C | 60 | 17.3 | 7633 | 2025-02-16 22:27:26 | MASTER-Kislovodsk | (14h 20m 34.14s , +60d 16m 43.3s) | C | 60 | 17.5 | 7813 | 2025-02-16 22:30:27 | MASTER-Kislovodsk | (13h 47m 28.02s , +58d 25m 39.4s) | C | 60 | 17.1 | 7893 | 2025-02-16 22:31:47 | MASTER-Kislovodsk | (14h 02m 50.11s , +58d 24m 15.8s) | C | 60 | 17.0 | 8554 | 2025-02-16 22:42:48 | MASTER-Kislovodsk | (14h 04m 29.75s , +60d 18m 27.7s) | C | 60 | 15.7 | 8634 | 2025-02-16 22:44:07 | MASTER-Kislovodsk | (14h 20m 27.55s , +60d 17m 01.8s) | C | 60 | 16.6 | 8714 | 2025-02-16 22:45:27 | MASTER-Kislovodsk | (13h 47m 31.98s , +58d 24m 11.2s) | C | 60 | 15.6 | 8793 | 2025-02-16 22:46:47 | MASTER-Kislovodsk | (14h 02m 43.06s , +58d 25m 29.6s) | C | 60 | 16.3 | 8976 | 2025-02-16 22:49:50 | MASTER-Kislovodsk | (13h 51m 50.42s , +62d 12m 49.6s) | C | 60 | 16.0 | 9056 | 2025-02-16 22:51:10 | MASTER-Kislovodsk | (14h 08m 55.17s , +62d 13m 26.3s) | C | 60 | 16.0 | Filter C is a clear (unfiltred) band.
The observation and reduction will continue. The message may be cited.
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