[vsnet-grb-info 33898] Fermi GRB 240407A: Global MASTER-Net observations report

TITLE: GCN CIRCULAR NUMBER: 36045 SUBJECT: Fermi GRB 240407A: Global MASTER-Net observations report DATE: 24/04/07 02:45:42 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-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 240407A ( Fermi GBM team, GCN 36044) errorbox 26 sec after notice time and 73 sec after trigger time at 2024-04-07 01:01:05 UT, with upper limit up to 17.5 mag. The observations began at zenith distance = 66 deg. The sun altitude is -18.3 deg. MASTER-Tavrida robotic telescope located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 240407A errorbox 96 sec after notice time and 144 sec after trigger time at 2024-04-07 01:02:16 UT, with upper limit up to 19.1 mag. The observations began at zenith distance = 69 deg. The sun altitude is -22.5 deg. The galactic latitude b = -15 deg., longitude l = 109 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2416508 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 79 | 2024-04-07 01:01:05 | MASTER-Kislovodsk | (23h 32m 39.83s , +47d 04m 24.7s) | C | 10 | 15.1 | 79 | 2024-04-07 01:01:05 | MASTER-Kislovodsk | (23h 38m 18.06s , +46d 40m 40.3s) | C | 10 | 16.3 | 109 | 2024-04-07 01:01:05 | MASTER-Kislovodsk | (23h 38m 18.06s , +46d 40m 40.2s) | C | 70 | 17.5 | Coadd 114 | 2024-04-07 01:01:36 | MASTER-Kislovodsk | (23h 38m 15.40s , +46d 42m 04.5s) | C | 20 | 16.7 | 115 | 2024-04-07 01:01:36 | MASTER-Kislovodsk | (23h 32m 37.08s , +47d 05m 49.7s) | C | 20 | 15.5 | 140 | 2024-04-07 01:01:36 | MASTER-Kislovodsk | (23h 32m 37.08s , +47d 05m 49.7s) | C | 70 | 16.0 | Coadd 159 | 2024-04-07 01:02:16 | MASTER-Tavrida | (23h 35m 26.07s , +47d 13m 42.4s) | C | 30 | 17.7 | 166 | 2024-04-07 01:02:22 | MASTER-Kislovodsk | (23h 34m 12.10s , +44d 47m 19.9s) | P| | 30 | 16.3 | 205 | 2024-04-07 01:02:56 | MASTER-Tavrida | (23h 25m 50.18s , +44d 56m 12.4s) | C | 40 | 18.2 | 221 | 2024-04-07 01:03:13 | MASTER-Kislovodsk | (23h 38m 21.46s , +46d 42m 31.3s) | C | 40 | 17.2 | 221 | 2024-04-07 01:03:13 | MASTER-Kislovodsk | (23h 32m 42.10s , +47d 06m 14.2s) | C | 40 | 15.6 | 287 | 2024-04-07 01:04:13 | MASTER-Kislovodsk | (23h 38m 15.32s , +46d 41m 33.6s) | C | 50 | 17.2 | 287 | 2024-04-07 01:04:13 | MASTER-Kislovodsk | (23h 32m 36.04s , +47d 05m 16.4s) | C | 50 | 15.6 | 363 | 2024-04-07 01:05:25 | MASTER-Kislovodsk | (23h 38m 15.55s , +46d 42m 33.8s) | C | 60 | 17.4 | 363 | 2024-04-07 01:05:25 | MASTER-Kislovodsk | (23h 32m 36.12s , +47d 06m 17.0s) | C | 60 | 16.0 | 821 | 2024-04-07 01:12:17 | MASTER-Tavrida | (23h 25m 56.16s , +44d 55m 51.6s) | C | 150 | 19.1 | 1580 | 2024-04-07 01:25:41 | MASTER-Kislovodsk | (23h 35m 57.51s , +44d 57m 58.9s) | C | 60 | 16.1 | 1580 | 2024-04-07 01:25:41 | MASTER-Kislovodsk | (23h 41m 24.62s , +44d 33m 59.5s) | C | 60 | 17.2 | 1660 | 2024-04-07 01:27:01 | MASTER-Kislovodsk | (23h 32m 48.85s , +43d 03m 11.1s) | C | 60 | 15.9 | 1660 | 2024-04-07 01:27:01 | MASTER-Kislovodsk | (23h 38m 05.44s , +42d 39m 11.0s) | C | 60 | 17.0 | 1741 | 2024-04-07 01:28:22 | MASTER-Kislovodsk | (23h 18m 29.88s , +46d 52m 36.1s) | C | 60 | 16.2 | 1741 | 2024-04-07 01:28:22 | MASTER-Kislovodsk | (23h 24m 09.97s , +46d 28m 38.3s) | C | 60 | 17.2 | 1821 | 2024-04-07 01:29:42 | MASTER-Kislovodsk | (23h 14m 29.30s , +44d 57m 47.8s) | C | 60 | 16.0 | 1821 | 2024-04-07 01:29:42 | MASTER-Kislovodsk | (23h 19m 57.98s , +44d 33m 52.2s) | C | 60 | 17.2 | 1901 | 2024-04-07 01:31:02 | MASTER-Kislovodsk | (23h 40m 42.22s , +46d 49m 58.8s) | C | 60 | 15.7 | 1901 | 2024-04-07 01:31:02 | MASTER-Kislovodsk | (23h 46m 20.74s , +46d 25m 54.7s) | C | 60 | 16.8 | 1981 | 2024-04-07 01:32:23 | MASTER-Kislovodsk | (23h 12m 09.93s , +43d 03m 11.9s) | C | 60 | 15.9 | 1981 | 2024-04-07 01:32:23 | MASTER-Kislovodsk | (23h 17m 28.24s , +42d 39m 17.9s) | C | 60 | 17.0 | 2062 | 2024-04-07 01:33:43 | MASTER-Kislovodsk | (23h 30m 24.58s , +48d 22m 17.6s) | C | 60 | 16.5 | 2463 | 2024-04-07 01:40:24 | MASTER-Kislovodsk | (23h 35m 56.74s , +44d 57m 25.5s) | C | 60 | 15.1 | 2463 | 2024-04-07 01:40:24 | MASTER-Kislovodsk | (23h 41m 24.46s , +44d 33m 25.3s) | C | 60 | 16.2 | 2623 | 2024-04-07 01:43:04 | MASTER-Kislovodsk | (23h 32m 55.39s , +43d 02m 46.5s) | C | 60 | 15.0 | 2623 | 2024-04-07 01:43:04 | MASTER-Kislovodsk | (23h 38m 12.58s , +42d 38m 48.4s) | C | 60 | 16.0 | 2703 | 2024-04-07 01:44:25 | MASTER-Kislovodsk | (23h 18m 31.66s , +46d 52m 37.3s) | C | 60 | 14.9 | 2703 | 2024-04-07 01:44:25 | MASTER-Kislovodsk | (23h 24m 12.78s , +46d 28m 40.9s) | C | 60 | 16.0 | 2784 | 2024-04-07 01:45:45 | MASTER-Kislovodsk | (23h 14m 27.19s , +44d 57m 14.5s) | C | 60 | 14.1 | 2784 | 2024-04-07 01:45:45 | MASTER-Kislovodsk | (23h 19m 55.94s , +44d 33m 21.2s) | C | 60 | 15.9 | 2864 | 2024-04-07 01:47:05 | MASTER-Kislovodsk | (23h 46m 27.01s , +46d 28m 03.3s) | C | 60 | 15.5 | 2944 | 2024-04-07 01:48:25 | MASTER-Kislovodsk | (23h 17m 21.90s , +42d 40m 35.5s) | C | 60 | 15.5 | 3024 | 2024-04-07 01:49:46 | MASTER-Kislovodsk | (23h 30m 22.68s , +48d 23m 01.0s) | C | 60 | 15.2 | 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/36045. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...