TITLE: GCN CIRCULAR NUMBER: 35667 SUBJECT: Fermi trigger No 728706420: Global MASTER-Net observations report DATE: 24/02/04 16:15:36 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 GRB240204.10 (trigger No 728706420,07h 55m 07.92s , +03d 07m 01.2s, R=29.57) errorbox 45762 sec after notice time and 45799 sec after trigger time at 2024-02-04 15:10:14 UT, with upper limit up to 14.2 mag. Observations started at twilight. The observations began at zenith distance = 73 deg. The sun altitude is -8.5 deg. MASTER-Tunka robotic telescope located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB240204.10 errorbox 45869 sec after notice time and 45906 sec after trigger time at 2024-02-04 15:12:01 UT, with upper limit up to 20.8 mag. The observations began at zenith distance = 54 deg. The sun altitude is -46.9 deg. The galactic latitude b = 16 deg., longitude l = 218 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2370974 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 45815 | 2024-02-04 15:10:14 | MASTER-Kislovodsk | (07h 03m 31.74s , -03d 55m 49.9s) | C | 30 | 13.8 | 45880 | 2024-02-04 15:11:14 | MASTER-Kislovodsk | (07h 03m 37.97s , -03d 55m 50.8s) | C | 40 | 14.2 | 45935 | 2024-02-04 15:12:01 | MASTER-Tunka | (07h 00m 35.55s , -03d 26m 43.3s) | C | 55 | 18.5 | 45990 | 2024-02-04 15:12:01 | MASTER-Tunka | (07h 00m 35.55s , -03d 26m 43.2s) | C | 165 | 18.9 | Coadd 45952 | 2024-02-04 15:12:16 | MASTER-Kislovodsk | (07h 03m 35.18s , -03d 54m 09.2s) | C | 60 | 14.2 | 45993 | 2024-02-04 15:13:00 | MASTER-Tunka | (07h 00m 35.63s , -03d 26m 41.6s) | C | 55 | 18.5 | 46037 | 2024-02-04 15:13:37 | MASTER-Kislovodsk | (07h 03m 35.33s , -03d 55m 45.7s) | C | 70 | 14.1 | 46110 | 2024-02-04 15:14:56 | MASTER-Tunka | (07h 00m 35.76s , -03d 26m 38.0s) | C | 55 | 18.5 | 46168 | 2024-02-04 15:15:55 | MASTER-Tunka | (07h 00m 35.83s , -03d 26m 36.1s) | C | 55 | 18.5 | 46285 | 2024-02-04 15:17:51 | MASTER-Tunka | (07h 00m 35.93s , -03d 26m 32.6s) | C | 55 | 18.5 | 46343 | 2024-02-04 15:18:50 | MASTER-Tunka | (07h 00m 36.01s , -03d 26m 30.8s) | C | 55 | 18.5 | 46401 | 2024-02-04 15:19:48 | MASTER-Tunka | (07h 00m 36.09s , -03d 26m 28.8s) | C | 55 | 18.5 | 46460 | 2024-02-04 15:20:46 | MASTER-Tunka | (07h 00m 36.17s , -03d 26m 27.1s) | C | 55 | 18.5 | 46528 | 2024-02-04 15:21:52 | MASTER-Tunka | (06h 45m 43.71s , -03d 13m 03.5s) | C | 60 | 19.9 | 46588 | 2024-02-04 15:21:52 | MASTER-Tunka | (06h 45m 43.71s , -03d 13m 03.5s) | C | 180 | 20.4 | Coadd 46798 | 2024-02-04 15:21:52 | MASTER-Tunka | (06h 45m 43.71s , -03d 13m 03.5s) | C | 600 | 20.8 | Coadd 46591 | 2024-02-04 15:22:56 | MASTER-Tunka | (06h 45m 43.78s , -03d 13m 01.1s) | C | 60 | 19.9 | 46654 | 2024-02-04 15:23:59 | MASTER-Tunka | (06h 45m 43.83s , -03d 12m 59.8s) | C | 60 | 19.9 | 46718 | 2024-02-04 15:25:02 | MASTER-Tunka | (06h 45m 43.88s , -03d 12m 57.8s) | C | 60 | 19.9 | 46778 | 2024-02-04 15:25:02 | MASTER-Tunka | (06h 45m 43.88s , -03d 12m 57.9s) | C | 180 | 20.4 | Coadd 46844 | 2024-02-04 15:27:09 | MASTER-Tunka | (06h 45m 44.01s , -03d 12m 54.0s) | C | 60 | 19.8 | 46907 | 2024-02-04 15:28:12 | MASTER-Tunka | (06h 45m 44.05s , -03d 12m 52.5s) | C | 60 | 19.9 | 46971 | 2024-02-04 15:29:15 | MASTER-Tunka | (06h 45m 44.14s , -03d 12m 50.2s) | C | 60 | 19.9 | 47031 | 2024-02-04 15:29:15 | MASTER-Tunka | (06h 45m 44.14s , -03d 12m 50.2s) | C | 180 | 20.4 | Coadd 47097 | 2024-02-04 15:31:22 | MASTER-Tunka | (06h 45m 44.31s , -03d 12m 46.5s) | C | 60 | 19.8 | 47165 | 2024-02-04 15:32:30 | MASTER-Tunka | (06h 45m 49.39s , -03d 12m 38.6s) | C | 60 | 19.9 | 47229 | 2024-02-04 15:33:33 | MASTER-Tunka | (06h 45m 49.44s , -03d 12m 36.0s) | C | 60 | 20.0 | 47289 | 2024-02-04 15:33:33 | MASTER-Tunka | (06h 45m 49.44s , -03d 12m 36.0s) | C | 180 | 20.5 | Coadd 47292 | 2024-02-04 15:34:37 | MASTER-Tunka | (06h 45m 49.50s , -03d 12m 34.2s) | C | 60 | 20.0 | 47355 | 2024-02-04 15:35:40 | MASTER-Tunka | (06h 45m 49.57s , -03d 12m 32.2s) | C | 60 | 20.0 | 47418 | 2024-02-04 15:36:43 | MASTER-Tunka | (06h 45m 49.60s , -03d 12m 30.7s) | C | 60 | 20.0 | 47478 | 2024-02-04 15:36:43 | MASTER-Tunka | (06h 45m 49.61s , -03d 12m 30.8s) | C | 180 | 20.5 | Coadd 47482 | 2024-02-04 15:37:46 | MASTER-Tunka | (06h 45m 49.68s , -03d 12m 29.1s) | C | 60 | 20.1 | 47545 | 2024-02-04 15:38:50 | MASTER-Tunka | (06h 45m 49.73s , -03d 12m 27.3s) | C | 60 | 20.0 | 47608 | 2024-02-04 15:39:53 | MASTER-Tunka | (06h 45m 49.77s , -03d 12m 25.3s) | C | 60 | 20.0 | 47672 | 2024-02-04 15:40:56 | MASTER-Tunka | (06h 45m 49.82s , -03d 12m 23.8s) | C | 60 | 20.0 | 47735 | 2024-02-04 15:41:59 | MASTER-Tunka | (06h 45m 49.86s , -03d 12m 21.8s) | C | 60 | 20.0 | 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/35667. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...