TITLE: GCN CIRCULAR NUMBER: 35254 SUBJECT: Fermi trigger No 723279695: Global MASTER-Net observations report DATE: 23/12/03 22:31:04 GMT 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, 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 GRB231203.29 (trigger No 723279695,15h 58m 43.20s , -49d 46m 12.0s, R=7.12) errorbox 40985 sec after notice time and 41021 sec after trigger time at 2023-12-03 18:25:12 UT, with upper limit up to 16.1 mag. Observations started at twilight. The observations began at zenith distance = 82 deg. The sun altitude is -10.6 deg. The galactic latitude b = 2 deg., longitude l = 331 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2322470 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 41051 | 2023-12-03 18:25:12 | MASTER-SAAO | (16h 04m 38.84s , -55d 32m 22.0s) | C | 60 | 13.8 | 41971 | 2023-12-03 18:40:32 | MASTER-SAAO | (16h 26m 22.69s , -57d 26m 40.3s) | C | 60 | 16.0 | 42221 | 2023-12-03 18:44:42 | MASTER-SAAO | (16h 31m 35.93s , -55d 31m 00.8s) | C | 60 | 16.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited. View this GCN Circular online at https://gcn.nasa.gov/circulars/35254. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...