TITLE: GCN CIRCULAR NUMBER: 36463 SUBJECT: LAT GRB240513.31: Global MASTER-Net observations report DATE: 24/05/13 19:56:29 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs 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) was pointed to the LAT GRB240513.31 (trigger No 240513307,10h 53m 36.00s , -27d 30m 00.0s, R=0.4) errorbox 8 sec after notice time and 37943 sec after trigger time at 2024-05-13 17:54:25 UT, with upper limit up to 19.6 mag. The observations began at zenith distance = 5 deg. The sun altitude is -26.2 deg. The galactic latitude b = 29 deg., longitude l = 274 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2454908 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 37973 | 2024-05-13 17:54:25 | MASTER-SAAO | (10h 50m 24.74s , -27d 23m 31.6s) | P\\ | 60 | 17.0 | 37973 | 2024-05-13 17:54:25 | MASTER-SAAO | (10h 52m 29.88s , -27d 36m 42.2s) | P/ | 60 | 16.1 | 38053 | 2024-05-13 17:55:44 | MASTER-SAAO | (10h 50m 25.37s , -27d 23m 30.1s) | P\\ | 60 | 17.1 | 38053 | 2024-05-13 17:55:44 | MASTER-SAAO | (10h 52m 30.51s , -27d 36m 40.7s) | P/ | 60 | 16.2 | 38132 | 2024-05-13 17:57:04 | MASTER-SAAO | (10h 50m 25.97s , -27d 23m 28.7s) | P\\ | 60 | 17.1 | 38132 | 2024-05-13 17:57:04 | MASTER-SAAO | (10h 52m 31.09s , -27d 36m 39.2s) | P/ | 60 | 16.2 | 38212 | 2024-05-13 17:58:23 | MASTER-SAAO | (10h 50m 26.56s , -27d 23m 27.1s) | P\\ | 60 | 17.1 | 38212 | 2024-05-13 17:58:23 | MASTER-SAAO | (10h 52m 31.68s , -27d 36m 37.5s) | P/ | 60 | 16.1 | 38291 | 2024-05-13 17:59:43 | MASTER-SAAO | (10h 50m 27.17s , -27d 23m 25.4s) | P\\ | 60 | 17.0 | 38291 | 2024-05-13 17:59:43 | MASTER-SAAO | (10h 52m 32.26s , -27d 36m 36.0s) | P/ | 60 | 15.9 | 38371 | 2024-05-13 18:01:02 | MASTER-SAAO | (10h 50m 27.77s , -27d 23m 23.8s) | P\\ | 60 | 17.1 | 38371 | 2024-05-13 18:01:02 | MASTER-SAAO | (10h 52m 32.87s , -27d 36m 34.3s) | P/ | 60 | 16.1 | 38450 | 2024-05-13 18:02:22 | MASTER-SAAO | (10h 50m 28.33s , -27d 23m 22.2s) | P\\ | 60 | 17.0 | 38450 | 2024-05-13 18:02:22 | MASTER-SAAO | (10h 52m 33.41s , -27d 36m 32.5s) | P/ | 60 | 15.9 | 38530 | 2024-05-13 18:03:41 | MASTER-SAAO | (10h 50m 28.88s , -27d 23m 20.5s) | P\\ | 60 | 17.1 | 38530 | 2024-05-13 18:03:41 | MASTER-SAAO | (10h 52m 33.99s , -27d 36m 30.7s) | P/ | 60 | 16.0 | 38609 | 2024-05-13 18:05:01 | MASTER-SAAO | (10h 50m 29.44s , -27d 23m 18.9s) | P\\ | 60 | 17.1 | 38609 | 2024-05-13 18:05:01 | MASTER-SAAO | (10h 52m 34.57s , -27d 36m 29.1s) | P/ | 60 | 16.1 | 38689 | 2024-05-13 18:06:20 | MASTER-SAAO | (10h 50m 30.00s , -27d 23m 17.0s) | P\\ | 60 | 17.1 | 38689 | 2024-05-13 18:06:20 | MASTER-SAAO | (10h 52m 35.15s , -27d 36m 27.3s) | P/ | 60 | 16.1 | 38768 | 2024-05-13 18:07:40 | MASTER-SAAO | (10h 50m 30.54s , -27d 23m 15.3s) | P\\ | 60 | 17.0 | 38768 | 2024-05-13 18:07:40 | MASTER-SAAO | (10h 52m 35.69s , -27d 36m 25.8s) | P/ | 60 | 16.3 | 38848 | 2024-05-13 18:08:59 | MASTER-SAAO | (10h 50m 31.09s , -27d 23m 13.6s) | P\\ | 60 | 17.1 | 38848 | 2024-05-13 18:08:59 | MASTER-SAAO | (10h 52m 36.26s , -27d 36m 23.9s) | P/ | 60 | 16.1 | 38927 | 2024-05-13 18:10:19 | MASTER-SAAO | (10h 50m 31.67s , -27d 23m 11.5s) | P\\ | 60 | 16.5 | 38927 | 2024-05-13 18:10:19 | MASTER-SAAO | (10h 52m 36.77s , -27d 36m 22.3s) | P/ | 60 | 15.4 | 39007 | 2024-05-13 18:11:38 | MASTER-SAAO | (10h 50m 32.23s , -27d 23m 09.3s) | P\\ | 60 | 16.3 | 39007 | 2024-05-13 18:11:38 | MASTER-SAAO | (10h 52m 36.46s , -27d 36m 21.4s) | P/ | 60 | 15.1 | 39086 | 2024-05-13 18:12:58 | MASTER-SAAO | (10h 50m 32.76s , -27d 23m 07.7s) | P\\ | 60 | 16.5 | 39086 | 2024-05-13 18:12:58 | MASTER-SAAO | (10h 52m 37.35s , -27d 36m 24.5s) | P/ | 60 | 15.3 | 39165 | 2024-05-13 18:14:17 | MASTER-SAAO | (10h 50m 33.26s , -27d 23m 06.0s) | P\\ | 60 | 16.4 | 39165 | 2024-05-13 18:14:17 | MASTER-SAAO | (10h 52m 38.37s , -27d 36m 18.8s) | P/ | 60 | 15.1 | 39245 | 2024-05-13 18:15:36 | MASTER-SAAO | (10h 50m 33.80s , -27d 23m 04.2s) | P\\ | 60 | 16.4 | 39245 | 2024-05-13 18:15:37 | MASTER-SAAO | (10h 52m 38.90s , -27d 36m 16.3s) | P/ | 60 | 15.3 | 39325 | 2024-05-13 18:16:56 | MASTER-SAAO | (10h 50m 34.32s , -27d 23m 02.4s) | P\\ | 60 | 16.4 | 39325 | 2024-05-13 18:16:56 | MASTER-SAAO | (10h 52m 39.42s , -27d 36m 15.5s) | P/ | 60 | 15.2 | 39404 | 2024-05-13 18:18:16 | MASTER-SAAO | (10h 50m 34.79s , -27d 23m 00.7s) | P\\ | 60 | 16.4 | 39404 | 2024-05-13 18:18:16 | MASTER-SAAO | (10h 52m 39.71s , -27d 36m 17.8s) | P/ | 60 | 15.0 | 39484 | 2024-05-13 18:19:35 | MASTER-SAAO | (10h 50m 35.20s , -27d 22m 58.6s) | P\\ | 60 | 16.4 | 39484 | 2024-05-13 18:19:35 | MASTER-SAAO | (10h 52m 40.72s , -27d 36m 11.0s) | P/ | 60 | 15.2 | 39563 | 2024-05-13 18:20:55 | MASTER-SAAO | (10h 50m 35.69s , -27d 22m 56.7s) | P\\ | 60 | 16.5 | 39563 | 2024-05-13 18:20:55 | MASTER-SAAO | (10h 52m 41.22s , -27d 36m 09.0s) | P/ | 60 | 15.3 | 39643 | 2024-05-13 18:22:14 | MASTER-SAAO | (10h 50m 36.18s , -27d 22m 54.7s) | P\\ | 60 | 16.5 | 39643 | 2024-05-13 18:22:14 | MASTER-SAAO | (10h 52m 40.86s , -27d 36m 07.4s) | P/ | 60 | 15.1 | 39722 | 2024-05-13 18:23:34 | MASTER-SAAO | (10h 50m 36.69s , -27d 22m 52.9s) | P\\ | 60 | 16.4 | 39722 | 2024-05-13 18:23:34 | MASTER-SAAO | (10h 52m 42.17s , -27d 36m 06.3s) | P/ | 60 | 15.5 | 39802 | 2024-05-13 18:24:53 | MASTER-SAAO | (10h 50m 37.18s , -27d 22m 50.9s) | P\\ | 60 | 16.5 | 39802 | 2024-05-13 18:24:53 | MASTER-SAAO | (10h 52m 42.21s , -27d 36m 09.5s) | P/ | 60 | 15.1 | 39882 | 2024-05-13 18:26:14 | MASTER-SAAO | (10h 50m 37.68s , -27d 22m 48.9s) | P\\ | 60 | 16.5 | 39882 | 2024-05-13 18:26:14 | MASTER-SAAO | (10h 52m 42.73s , -27d 36m 06.0s) | P/ | 60 | 15.3 | 39962 | 2024-05-13 18:27:33 | MASTER-SAAO | (10h 50m 38.17s , -27d 22m 46.8s) | P\\ | 60 | 16.5 | 39962 | 2024-05-13 18:27:33 | MASTER-SAAO | (10h 52m 43.20s , -27d 36m 04.9s) | P/ | 60 | 15.4 | 40041 | 2024-05-13 18:28:53 | MASTER-SAAO | (10h 50m 38.64s , -27d 22m 45.1s) | P\\ | 60 | 16.5 | 40041 | 2024-05-13 18:28:53 | MASTER-SAAO | (10h 52m 44.13s , -27d 35m 57.7s) | P/ | 60 | 15.2 | 40121 | 2024-05-13 18:30:12 | MASTER-SAAO | (10h 50m 39.05s , -27d 22m 43.6s) | P\\ | 60 | 17.5 | 40181 | 2024-05-13 18:30:12 | MASTER-SAAO | (10h 50m 39.05s , -27d 22m 43.6s) | P\\ | 180 | 18.0 | Coadd 40421 | 2024-05-13 18:30:12 | MASTER-SAAO | (10h 50m 39.03s , -27d 22m 43.7s) | P\\ | 660 | 18.8 | Coadd 40121 | 2024-05-13 18:30:12 | MASTER-SAAO | (10h 52m 44.67s , -27d 35m 55.3s) | P/ | 60 | 17.4 | 40181 | 2024-05-13 18:30:12 | MASTER-SAAO | (10h 52m 44.66s , -27d 35m 55.3s) | P/ | 180 | 18.2 | Coadd 40421 | 2024-05-13 18:30:12 | MASTER-SAAO | (10h 52m 44.65s , -27d 35m 55.4s) | P/ | 660 | 18.8 | Coadd 40200 | 2024-05-13 18:31:32 | MASTER-SAAO | (10h 50m 39.52s , -27d 22m 41.5s) | P\\ | 60 | 17.5 | 40200 | 2024-05-13 18:31:32 | MASTER-SAAO | (10h 52m 45.12s , -27d 35m 53.4s) | P/ | 60 | 17.4 | 40280 | 2024-05-13 18:32:51 | MASTER-SAAO | (10h 50m 39.98s , -27d 22m 39.3s) | P\\ | 60 | 17.5 | 40280 | 2024-05-13 18:32:51 | MASTER-SAAO | (10h 52m 45.57s , -27d 35m 51.3s) | P/ | 60 | 17.4 | 40359 | 2024-05-13 18:34:11 | MASTER-SAAO | (10h 50m 40.44s , -27d 22m 37.5s) | P\\ | 60 | 17.4 | 40419 | 2024-05-13 18:34:11 | MASTER-SAAO | (10h 50m 40.44s , -27d 22m 37.5s) | P\\ | 180 | 18.2 | Coadd 40359 | 2024-05-13 18:34:11 | MASTER-SAAO | (10h 52m 46.04s , -27d 35m 49.4s) | P/ | 60 | 17.5 | 40419 | 2024-05-13 18:34:11 | MASTER-SAAO | (10h 52m 46.03s , -27d 35m 49.4s) | P/ | 180 | 18.1 | Coadd 40439 | 2024-05-13 18:35:30 | MASTER-SAAO | (10h 50m 40.90s , -27d 22m 35.6s) | P\\ | 60 | 17.5 | 40439 | 2024-05-13 18:35:30 | MASTER-SAAO | (10h 52m 46.49s , -27d 35m 47.5s) | P/ | 60 | 17.4 | 40518 | 2024-05-13 18:36:49 | MASTER-SAAO | (10h 50m 41.34s , -27d 22m 33.6s) | P\\ | 60 | 17.5 | 40518 | 2024-05-13 18:36:49 | MASTER-SAAO | (10h 52m 46.94s , -27d 35m 45.6s) | P/ | 60 | 17.4 | 40598 | 2024-05-13 18:38:09 | MASTER-SAAO | (10h 50m 41.75s , -27d 22m 31.6s) | P\\ | 60 | 17.5 | 40658 | 2024-05-13 18:38:09 | MASTER-SAAO | (10h 50m 41.75s , -27d 22m 31.6s) | P\\ | 180 | 18.2 | Coadd 40598 | 2024-05-13 18:38:09 | MASTER-SAAO | (10h 52m 47.42s , -27d 35m 43.8s) | P/ | 60 | 17.4 | 40658 | 2024-05-13 18:38:09 | MASTER-SAAO | (10h 52m 47.41s , -27d 35m 43.8s) | P/ | 180 | 18.1 | Coadd 40677 | 2024-05-13 18:39:29 | MASTER-SAAO | (10h 50m 42.15s , -27d 22m 29.8s) | P\\ | 60 | 17.5 | 40677 | 2024-05-13 18:39:29 | MASTER-SAAO | (10h 52m 47.84s , -27d 35m 41.8s) | P/ | 60 | 17.4 | 40756 | 2024-05-13 18:40:48 | MASTER-SAAO | (10h 50m 42.57s , -27d 22m 27.8s) | P\\ | 60 | 17.5 | 40756 | 2024-05-13 18:40:48 | MASTER-SAAO | (10h 52m 48.29s , -27d 35m 39.9s) | P/ | 60 | 17.4 | 40836 | 2024-05-13 18:42:08 | MASTER-SAAO | (10h 50m 42.97s , -27d 22m 26.1s) | P\\ | 60 | 17.5 | 40956 | 2024-05-13 18:42:08 | MASTER-SAAO | (10h 50m 42.97s , -27d 22m 26.1s) | P\\ | 300 | 19.4 | Coadd 40836 | 2024-05-13 18:42:08 | MASTER-SAAO | (10h 52m 48.71s , -27d 35m 37.9s) | P/ | 60 | 17.5 | 40916 | 2024-05-13 18:43:27 | MASTER-SAAO | (10h 50m 43.38s , -27d 22m 24.0s) | P\\ | 60 | 17.5 | 40916 | 2024-05-13 18:43:27 | MASTER-SAAO | (10h 52m 49.16s , -27d 35m 35.8s) | P/ | 60 | 17.5 | 41215 | 2024-05-13 18:47:27 | MASTER-SAAO | (10h 50m 45.79s , -27d 20m 17.4s) | C | 180 | 19.5 | 41215 | 2024-05-13 18:47:27 | MASTER-SAAO | (10h 52m 50.95s , -27d 33m 28.4s) | C | 180 | 19.4 | 41415 | 2024-05-13 18:50:46 | MASTER-SAAO | (10h 50m 52.10s , -27d 21m 12.1s) | C | 180 | 19.4 | 41415 | 2024-05-13 18:50:46 | MASTER-SAAO | (10h 52m 57.25s , -27d 34m 23.1s) | C | 180 | 19.4 | 41614 | 2024-05-13 18:54:06 | MASTER-SAAO | (10h 50m 47.63s , -27d 22m 06.6s) | C | 180 | 19.5 | 41614 | 2024-05-13 18:54:06 | MASTER-SAAO | (10h 52m 52.80s , -27d 35m 17.9s) | C | 180 | 19.5 | 41814 | 2024-05-13 18:57:26 | MASTER-SAAO | (10h 50m 53.17s , -27d 21m 40.9s) | C | 180 | 19.3 | 41814 | 2024-05-13 18:57:26 | MASTER-SAAO | (10h 52m 58.34s , -27d 34m 52.7s) | C | 180 | 19.4 | 42014 | 2024-05-13 19:00:45 | MASTER-SAAO | (10h 50m 51.54s , -27d 20m 01.2s) | C | 180 | 19.2 | 42014 | 2024-05-13 19:00:45 | MASTER-SAAO | (10h 52m 56.66s , -27d 33m 13.1s) | C | 180 | 19.2 | 42213 | 2024-05-13 19:04:05 | MASTER-SAAO | (10h 50m 52.31s , -27d 21m 21.8s) | C | 180 | 19.2 | 42214 | 2024-05-13 19:04:05 | MASTER-SAAO | (10h 52m 57.45s , -27d 34m 33.8s) | C | 180 | 19.3 | 42540 | 2024-05-13 19:09:31 | MASTER-SAAO | (10h 50m 50.38s , -27d 19m 40.6s) | C | 180 | 19.3 | 42540 | 2024-05-13 19:09:31 | MASTER-SAAO | (10h 52m 55.42s , -27d 32m 52.6s) | C | 180 | 19.4 | 42999 | 2024-05-13 19:18:10 | MASTER-SAAO | (10h 44m 58.43s , -27d 20m 41.3s) | C | 60 | 19.1 | 43078 | 2024-05-13 19:19:30 | MASTER-SAAO | (10h 51m 47.14s , -27d 08m 23.2s) | C | 60 | 18.9 | 43078 | 2024-05-13 19:19:30 | MASTER-SAAO | (10h 53m 51.86s , -27d 21m 35.7s) | C | 60 | 19.1 | 43778 | 2024-05-13 19:30:09 | MASTER-SAAO | (10h 50m 53.81s , -27d 21m 02.2s) | C | 180 | 19.4 | 43778 | 2024-05-13 19:30:09 | MASTER-SAAO | (10h 52m 58.58s , -27d 34m 14.5s) | C | 180 | 19.6 | 44002 | 2024-05-13 19:34:53 | MASTER-SAAO | (10h 44m 57.89s , -27d 21m 49.3s) | C | 60 | 19.1 | 44166 | 2024-05-13 19:37:37 | MASTER-SAAO | (10h 51m 49.00s , -27d 07m 55.7s) | C | 60 | 18.9 | 44166 | 2024-05-13 19:37:37 | MASTER-SAAO | (10h 53m 53.45s , -27d 21m 06.4s) | C | 60 | 19.0 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.