[vsnet-grb-info 40246] EP251006a: Global MASTER-Net observations report

TITLE: GCN CIRCULAR NUMBER: 42176 SUBJECT: EP251006a: Global MASTER-Net observations report DATE: 25/10/09 20:18:28 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru> V.Lipunov, E.Gorbovskoy, A.Kuznetsov, K.Zhirkov, I.Panchenko, N.Tiurina, P.Balanutsa, V.Topolev, D.Vlasenko, G.Antipov, A.Sankovich, Yu.Tselik, 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.Sosnovskij (CrAO), 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) was pointed to the EP251006a ( EP Team et al., GCN 42137) errorbox 196 sec after trigger time at 2025-10-07 18:11:57 UT, with upper limit up to 16.6 mag. The observations began at zenith distance = 79 deg. The sun altitude is -37.7 deg. MASTER-SAAO robotic telescope located in South Africa (South African Astronomical Observatory) was pointed to the EP251006a errorbox 3541 sec after trigger time at 2025-10-07 19:07:42 UT, with upper limit up to 18.5 mag. The observations began at zenith distance = 75 deg. The sun altitude is -29.6 deg. MASTER-OAFA robotic telescope located in Argentina (OAFA observatory of San Juan National University) was pointed to the EP251006a errorbox 40526 sec after trigger time at 2025-10-08 05:24:07 UT, with upper limit up to 18.7 mag. The observations began at zenith distance = 27 deg. The sun altitude is -50.3 deg. The galactic latitude b = -56 deg., longitude l = 180 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=3010044 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 226 | 2025-10-07 18:11:57 | MASTER-Kislovodsk | (02h 39m 56.00s , -06d 09m 59.8s) | C | 60 | 14.6 | 226 | 2025-10-07 18:11:57 | MASTER-Kislovodsk | (02h 39m 54.59s , -05d 47m 17.6s) | C | 60 | 15.4 | 508 | 2025-10-07 18:16:38 | MASTER-Kislovodsk | (02h 39m 49.79s , -05d 48m 02.3s) | C | 60 | 15.5 | 508 | 2025-10-07 18:16:38 | MASTER-Kislovodsk | (02h 39m 51.52s , -06d 10m 40.5s) | C | 60 | 14.6 | 823 | 2025-10-07 18:21:54 | MASTER-Kislovodsk | (02h 39m 48.84s , -05d 45m 43.0s) | C | 60 | 15.5 | 883 | 2025-10-07 18:21:54 | MASTER-Kislovodsk | (02h 39m 48.82s , -05d 45m 42.9s) | C | 180 | 16.2 | Coadd 823 | 2025-10-07 18:21:54 | MASTER-Kislovodsk | (02h 39m 51.15s , -06d 08m 22.6s) | C | 60 | 14.9 | 903 | 2025-10-07 18:23:14 | MASTER-Kislovodsk | (02h 39m 51.14s , -06d 10m 23.8s) | C | 60 | 14.9 | 903 | 2025-10-07 18:23:14 | MASTER-Kislovodsk | (02h 39m 48.76s , -05d 47m 43.3s) | C | 60 | 15.5 | 1250 | 2025-10-07 18:29:00 | MASTER-Kislovodsk | (02h 39m 55.32s , -05d 47m 15.7s) | C | 60 | 15.6 | 1250 | 2025-10-07 18:29:00 | MASTER-Kislovodsk | (02h 39m 57.09s , -06d 10m 09.1s) | C | 60 | 14.6 | 3572 | 2025-10-07 19:07:42 | MASTER-SAAO | (02h 38m 20.93s , -06d 05m 34.6s) | C | 60 | 17.0 | 3572 | 2025-10-07 19:07:42 | MASTER-SAAO | (02h 40m 07.46s , -06d 21m 24.6s) | C | 60 | 13.5 | 40556 | 2025-10-08 05:24:07 | MASTER-OAFA | (02h 38m 04.24s , -06d 11m 37.8s) | C | 60 | 18.6 | 40631 | 2025-10-08 05:25:22 | MASTER-OAFA | (02h 38m 03.16s , -06d 10m 39.1s) | C | 60 | 18.6 | 40868 | 2025-10-08 05:29:18 | MASTER-OAFA | (02h 38m 02.78s , -06d 12m 42.4s) | C | 60 | 18.7 | 40945 | 2025-10-08 05:30:36 | MASTER-OAFA | (02h 46m 13.59s , -06d 12m 15.1s) | C | 60 | 18.7 | 41021 | 2025-10-08 05:31:52 | MASTER-OAFA | (02h 46m 09.43s , -06d 10m 39.7s) | C | 60 | 18.6 | 41099 | 2025-10-08 05:33:10 | MASTER-OAFA | (02h 46m 09.23s , -06d 12m 05.1s) | C | 60 | 18.6 | 43486 | 2025-10-08 06:12:57 | MASTER-OAFA | (02h 46m 25.97s , -05d 55m 21.1s) | C | 60 | 18.7 | 43564 | 2025-10-08 06:14:15 | MASTER-OAFA | (02h 46m 30.99s , -05d 55m 10.3s) | C | 60 | 18.7 | 43638 | 2025-10-08 06:15:29 | MASTER-OAFA | (02h 46m 28.25s , -05d 53m 31.6s) | C | 60 | 18.7 | 86664 | 2025-10-08 18:12:34 | MASTER-Kislovodsk | (02h 39m 48.87s , -05d 45m 56.5s) | C | 60 | 15.5 | 86724 | 2025-10-08 18:12:34 | MASTER-Kislovodsk | (02h 39m 48.87s , -05d 45m 56.4s) | C | 180 | 16.0 | Coadd 86664 | 2025-10-08 18:12:34 | MASTER-Kislovodsk | (02h 39m 49.14s , -06d 09m 00.5s) | C | 60 | 14.8 | 86744 | 2025-10-08 18:13:54 | MASTER-Kislovodsk | (02h 39m 58.79s , -05d 49m 41.8s) | C | 60 | 15.4 | 86744 | 2025-10-08 18:13:54 | MASTER-Kislovodsk | (02h 39m 59.30s , -06d 12m 47.1s) | C | 60 | 14.1 | 87245 | 2025-10-08 18:22:15 | MASTER-Kislovodsk | (02h 39m 49.23s , -05d 46m 24.8s) | C | 60 | 15.4 | 87245 | 2025-10-08 18:22:15 | MASTER-Kislovodsk | (02h 39m 52.54s , -06d 09m 03.4s) | C | 60 | 15.4 | 88594 | 2025-10-08 18:44:45 | MASTER-Kislovodsk | (02h 39m 53.25s , -05d 46m 54.7s) | C | 60 | 15.8 | 88654 | 2025-10-08 18:44:45 | MASTER-Kislovodsk | (02h 39m 53.24s , -05d 46m 54.5s) | C | 180 | 16.6 | Coadd 88594 | 2025-10-08 18:44:45 | MASTER-Kislovodsk | (02h 39m 57.09s , -06d 10m 00.7s) | C | 60 | 16.3 | 88935 | 2025-10-08 18:50:26 | MASTER-Kislovodsk | (02h 39m 52.51s , -05d 45m 44.1s) | C | 60 | 16.0 | 88935 | 2025-10-08 18:50:26 | MASTER-Kislovodsk | (02h 39m 58.82s , -06d 08m 32.2s) | C | 60 | 16.4 | 89015 | 2025-10-08 18:51:46 | MASTER-Kislovodsk | (02h 39m 58.46s , -05d 46m 41.6s) | C | 60 | 16.0 | 89015 | 2025-10-08 18:51:46 | MASTER-Kislovodsk | (02h 40m 04.85s , -06d 09m 31.8s) | C | 60 | 16.3 | 89095 | 2025-10-08 18:53:06 | MASTER-Kislovodsk | (02h 39m 48.54s , -05d 44m 54.1s) | C | 60 | 15.9 | 89155 | 2025-10-08 18:53:06 | MASTER-Kislovodsk | (02h 39m 48.54s , -05d 44m 54.2s) | C | 180 | 16.6 | Coadd 89095 | 2025-10-08 18:53:06 | MASTER-Kislovodsk | (02h 39m 55.02s , -06d 07m 45.0s) | C | 60 | 16.4 | 89175 | 2025-10-08 18:54:25 | MASTER-Kislovodsk | (02h 39m 54.56s , -05d 46m 36.7s) | C | 60 | 16.0 | 89175 | 2025-10-08 18:54:25 | MASTER-Kislovodsk | (02h 40m 01.09s , -06d 09m 28.4s) | C | 60 | 16.2 | 89255 | 2025-10-08 18:55:46 | MASTER-Kislovodsk | (02h 39m 54.62s , -05d 44m 51.0s) | C | 60 | 16.1 | 89255 | 2025-10-08 18:55:46 | MASTER-Kislovodsk | (02h 40m 01.20s , -06d 07m 42.8s) | C | 60 | 16.4 | 89335 | 2025-10-08 18:57:06 | MASTER-Kislovodsk | (02h 40m 00.54s , -05d 48m 27.7s) | C | 60 | 15.9 | 89335 | 2025-10-08 18:57:06 | MASTER-Kislovodsk | (02h 40m 07.15s , -06d 11m 19.7s) | C | 60 | 16.3 | 89937 | 2025-10-08 19:07:07 | MASTER-Kislovodsk | (02h 39m 50.59s , -05d 42m 57.7s) | C | 60 | 16.1 | 89937 | 2025-10-08 19:07:07 | MASTER-Kislovodsk | (02h 39m 56.71s , -06d 06m 09.4s) | C | 60 | 16.4 | 90017 | 2025-10-08 19:08:27 | MASTER-Kislovodsk | (02h 39m 53.56s , -05d 47m 41.3s) | C | 60 | 16.0 | 90017 | 2025-10-08 19:08:27 | MASTER-Kislovodsk | (02h 39m 59.66s , -06d 10m 54.2s) | C | 60 | 16.4 | 111807 | 2025-10-09 01:11:38 | MASTER-SAAO | (02h 41m 40.45s , -06d 20m 51.9s) | C | 60 | 18.2 | 111807 | 2025-10-09 01:11:38 | MASTER-SAAO | (02h 39m 51.83s , -06d 05m 32.4s) | C | 60 | 18.5 | 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/42176. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...