TITLE: GCN CIRCULAR NUMBER: 36905 SUBJECT: Fermi GRB 240718A: Global MASTER-Net observations report DATE: 24/07/18 19:33:13 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 GRB 240718A ( Fermi GBM team, GCN 36898) errorbox 42681 sec after notice time and 42709 sec after trigger time at 2024-07-18 18:20:49 UT, with upper limit up to 15.5 mag. The observations began at zenith distance = 19 deg. The sun altitude is -30.7 deg. The galactic latitude b = 10 deg., longitude l = 355 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2534080 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 42724 | 2024-07-18 18:20:49 | MASTER-SAAO | (16h 49m 33.00s , -25d 18m 29.3s) | C | 30 | 15.2 | 42774 | 2024-07-18 18:21:38 | MASTER-SAAO | (16h 49m 26.14s , -25d 19m 28.7s) | C | 30 | 15.5 | 42823 | 2024-07-18 18:22:28 | MASTER-SAAO | (16h 49m 33.34s , -25d 19m 11.5s) | C | 30 | 15.4 | 42877 | 2024-07-18 18:23:22 | MASTER-SAAO | (16h 49m 29.78s , -25d 17m 44.9s) | C | 30 | 15.2 | 42927 | 2024-07-18 18:24:12 | MASTER-SAAO | (16h 49m 29.74s , -25d 19m 18.0s) | C | 30 | 15.3 | 43172 | 2024-07-18 18:28:29 | MASTER-SAAO | (16h 49m 26.41s , -25d 19m 23.3s) | C | 5 | 14.7 | 43197 | 2024-07-18 18:28:54 | MASTER-SAAO | (16h 49m 33.59s , -25d 19m 06.3s) | C | 5 | 14.9 | 43225 | 2024-07-18 18:29:22 | MASTER-SAAO | (16h 49m 29.53s , -25d 17m 33.6s) | C | 5 | 15.1 | 43252 | 2024-07-18 18:29:49 | MASTER-SAAO | (16h 49m 29.54s , -25d 18m 57.2s) | C | 5 | 14.9 | 43283 | 2024-07-18 18:30:19 | MASTER-SAAO | (16h 49m 33.16s , -25d 17m 50.4s) | C | 5 | 14.8 | 43314 | 2024-07-18 18:30:51 | MASTER-SAAO | (16h 49m 26.33s , -25d 18m 21.2s) | C | 5 | 14.9 | 43343 | 2024-07-18 18:31:20 | MASTER-SAAO | (16h 49m 27.07s , -25d 17m 21.3s) | C | 5 | 14.8 | 43367 | 2024-07-18 18:31:44 | MASTER-SAAO | (16h 49m 31.97s , -25d 18m 20.6s) | C | 5 | 15.1 | 43393 | 2024-07-18 18:32:10 | MASTER-SAAO | (16h 49m 26.06s , -25d 19m 20.7s) | C | 5 | 14.6 | 43417 | 2024-07-18 18:32:34 | MASTER-SAAO | (16h 49m 32.43s , -25d 19m 07.1s) | C | 5 | 14.7 | 43442 | 2024-07-18 18:32:59 | MASTER-SAAO | (16h 49m 29.51s , -25d 17m 25.4s) | C | 5 | 14.8 | 43467 | 2024-07-18 18:33:24 | MASTER-SAAO | (16h 49m 29.48s , -25d 19m 11.9s) | C | 5 | 14.7 | 43494 | 2024-07-18 18:33:51 | MASTER-SAAO | (16h 49m 32.06s , -25d 17m 19.6s) | C | 5 | 14.9 | 43518 | 2024-07-18 18:34:15 | MASTER-SAAO | (16h 49m 26.51s , -25d 18m 18.5s) | C | 5 | 14.9 | 43549 | 2024-07-18 18:34:46 | MASTER-SAAO | (16h 49m 26.37s , -25d 17m 18.0s) | C | 5 | 14.8 | 43574 | 2024-07-18 18:35:11 | MASTER-SAAO | (16h 49m 32.19s , -25d 18m 18.2s) | C | 5 | 14.8 | 43598 | 2024-07-18 18:35:35 | MASTER-SAAO | (16h 49m 28.07s , -25d 19m 17.4s) | C | 5 | 15.1 | 43629 | 2024-07-18 18:36:06 | MASTER-SAAO | (16h 49m 33.98s , -25d 18m 54.5s) | C | 5 | 15.0 | 43653 | 2024-07-18 18:36:30 | MASTER-SAAO | (16h 49m 30.73s , -25d 17m 23.2s) | C | 5 | 14.6 | 43677 | 2024-07-18 18:36:54 | MASTER-SAAO | (16h 49m 31.09s , -25d 18m 59.1s) | C | 5 | 13.5 | 43933 | 2024-07-18 18:41:07 | MASTER-SAAO | (16h 49m 28.90s , -25d 18m 12.4s) | C | 10 | 14.0 | 43962 | 2024-07-18 18:41:37 | MASTER-SAAO | (16h 49m 30.19s , -25d 17m 12.1s) | C | 10 | 14.2 | 43991 | 2024-07-18 18:42:06 | MASTER-SAAO | (16h 49m 35.45s , -25d 18m 12.1s) | C | 10 | 14.1 | 44029 | 2024-07-18 18:42:44 | MASTER-SAAO | (16h 49m 30.96s , -25d 19m 11.0s) | C | 10 | 14.5 | 44058 | 2024-07-18 18:43:13 | MASTER-SAAO | (16h 49m 37.16s , -25d 19m 02.1s) | C | 10 | 14.6 | 44090 | 2024-07-18 18:43:45 | MASTER-SAAO | (16h 49m 34.06s , -25d 17m 38.5s) | C | 10 | 14.1 | 44122 | 2024-07-18 18:44:17 | MASTER-SAAO | (16h 49m 34.13s , -25d 18m 59.1s) | C | 10 | 14.4 | 44151 | 2024-07-18 18:44:46 | MASTER-SAAO | (16h 49m 36.55s , -25d 17m 37.3s) | C | 10 | 14.7 | 44181 | 2024-07-18 18:45:16 | MASTER-SAAO | (16h 49m 31.31s , -25d 18m 09.3s) | C | 10 | 14.9 | 44211 | 2024-07-18 18:45:46 | MASTER-SAAO | (16h 49m 31.18s , -25d 17m 08.7s) | C | 10 | 15.1 | 44240 | 2024-07-18 18:46:15 | MASTER-SAAO | (16h 49m 37.46s , -25d 18m 08.2s) | C | 10 | 14.9 | 44281 | 2024-07-18 18:46:56 | MASTER-SAAO | (16h 49m 31.70s , -25d 19m 08.0s) | C | 10 | 15.0 | 44319 | 2024-07-18 18:47:33 | MASTER-SAAO | (16h 49m 38.03s , -25d 18m 50.2s) | C | 10 | 15.0 | 44349 | 2024-07-18 18:48:04 | MASTER-SAAO | (16h 49m 35.84s , -25d 17m 18.5s) | C | 10 | 14.7 | 44380 | 2024-07-18 18:48:35 | MASTER-SAAO | (16h 49m 36.01s , -25d 18m 54.3s) | C | 10 | 14.8 | 44410 | 2024-07-18 18:49:05 | MASTER-SAAO | (16h 49m 39.77s , -25d 17m 12.7s) | C | 10 | 14.9 | 44439 | 2024-07-18 18:49:34 | MASTER-SAAO | (16h 49m 33.27s , -25d 18m 05.7s) | C | 10 | 14.9 | 44469 | 2024-07-18 18:50:04 | MASTER-SAAO | (16h 49m 32.75s , -25d 17m 05.6s) | C | 10 | 14.9 | 44498 | 2024-07-18 18:50:33 | MASTER-SAAO | (16h 49m 39.76s , -25d 18m 05.1s) | C | 10 | 15.0 | 44528 | 2024-07-18 18:51:03 | MASTER-SAAO | (16h 49m 34.55s , -25d 19m 04.1s) | C | 10 | 15.1 | 44557 | 2024-07-18 18:51:32 | MASTER-SAAO | (16h 49m 41.20s , -25d 18m 51.6s) | C | 10 | 14.9 | 44587 | 2024-07-18 18:52:02 | MASTER-SAAO | (16h 49m 37.54s , -25d 17m 22.1s) | C | 10 | 15.0 | 45632 | 2024-07-18 19:09:27 | MASTER-SAAO | (16h 49m 47.32s , -25d 18m 48.2s) | C | 10 | 13.3 | 45724 | 2024-07-18 19:10:59 | MASTER-SAAO | (16h 49m 48.12s , -25d 16m 59.8s) | C | 10 | 13.1 | 45753 | 2024-07-18 19:11:28 | MASTER-SAAO | (16h 49m 43.00s , -25d 17m 47.9s) | C | 10 | 12.3 | 45787 | 2024-07-18 19:12:02 | MASTER-SAAO | (16h 49m 44.34s , -25d 16m 47.7s) | C | 10 | 12.1 | 45817 | 2024-07-18 19:12:32 | MASTER-SAAO | (16h 49m 49.91s , -25d 17m 47.3s) | C | 10 | 13.1 | 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/36905. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...