TITLE: GCN CIRCULAR NUMBER: 35996 SUBJECT: Fermi trigger No 733366352: Global MASTER-Net observations report DATE: 24/03/30 07:15:34 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 GRB240329.04 (trigger No 733366352,00h 01m 24.00s , -16d 09m 00.0s, R=26.22) errorbox 59181 sec after notice time and 59213 sec after trigger time at 2024-03-29 17:19:21 UT, with upper limit up to 24.5 mag. Observations started at twilight. The observations began at zenith distance = 80 deg. The sun altitude is -9.6 deg.

The galactic latitude b = -74 deg., longitude l = 76 deg.

Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2409680

We obtain a following upper limits.

Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________

59244 | 2024-03-29 17:19:21 | MASTER-SAAO | (00h 33m 49.21s , -32d 55m 01.9s) | C | 60 | 13.1 | 59711 | 2024-03-29 17:27:08 | MASTER-SAAO | (00h 50m 53.96s , -31d 01m 27.3s) | C | 60 | 14.6 | 59871 | 2024-03-29 17:29:48 | MASTER-SAAO | (01h 07m 20.48s , -29d 07m 29.1s) | C | 60 | 24.5 | 59871 | 2024-03-29 17:29:48 | MASTER-SAAO | (01h 09m 21.51s , -29d 20m 19.4s) | C | 60 | 15.0 | 59955 | 2024-03-29 17:31:12 | MASTER-SAAO | (01h 23m 05.41s , -27d 13m 20.0s) | C | 60 | 15.7 | 59955 | 2024-03-29 17:31:12 | MASTER-SAAO | (01h 25m 04.39s , -27d 26m 08.5s) | C | 60 | 16.5 | 60035 | 2024-03-29 17:32:32 | MASTER-SAAO | (01h 08m 14.31s , -27d 26m 51.3s) | C | 60 | 15.9 | 60126 | 2024-03-29 17:34:03 | MASTER-SAAO | (01h 08m 31.62s , -31d 03m 10.2s) | C | 60 | 14.0 | 60126 | 2024-03-29 17:34:03 | MASTER-SAAO | (01h 10m 35.07s , -31d 16m 01.1s) | C | 60 | 15.0 | 60205 | 2024-03-29 17:35:22 | MASTER-SAAO | (01h 37m 11.88s , -23d 27m 10.0s) | C | 60 | 15.8 | 60205 | 2024-03-29 17:35:22 | MASTER-SAAO | (01h 39m 07.37s , -23d 39m 59.3s) | C | 60 | 16.7 | 60285 | 2024-03-29 17:36:42 | MASTER-SAAO | (01h 24m 38.26s , -29d 07m 16.6s) | C | 60 | 17.6 | 60285 | 2024-03-29 17:36:42 | MASTER-SAAO | (01h 26m 39.42s , -29d 20m 05.4s) | C | 60 | 18.4 | 60364 | 2024-03-29 17:38:02 | MASTER-SAAO | (00h 51m 59.18s , -32d 56m 39.6s) | C | 60 | 15.5 | 60364 | 2024-03-29 17:38:02 | MASTER-SAAO | (00h 54m 05.22s , -33d 09m 34.8s) | C | 60 | 16.9 | 60444 | 2024-03-29 17:39:21 | MASTER-SAAO | (01h 40m 15.11s , -27d 13m 29.5s) | C | 60 | 17.2 | 60444 | 2024-03-29 17:39:21 | MASTER-SAAO | (01h 42m 14.34s , -27d 26m 17.5s) | C | 60 | 17.8 | 60524 | 2024-03-29 17:40:41 | MASTER-SAAO | (01h 38m 34.03s , -25d 20m 10.5s) | C | 60 | 16.2 | 60524 | 2024-03-29 17:40:41 | MASTER-SAAO | (01h 40m 31.36s , -25d 33m 00.1s) | C | 60 | 17.3 | 60836 | 2024-03-29 17:45:53 | MASTER-SAAO | (01h 52m 11.87s , -21d 31m 14.8s) | C | 60 | 15.0 | 60836 | 2024-03-29 17:45:53 | MASTER-SAAO | (01h 54m 06.51s , -21d 44m 03.2s) | C | 60 | 17.5 | 60916 | 2024-03-29 17:47:13 | MASTER-SAAO | (01h 25m 20.77s , -27d 26m 11.0s) | C | 60 | 17.2 | 61075 | 2024-03-29 17:49:52 | MASTER-SAAO | (01h 08m 45.99s , -31d 01m 46.4s) | C | 60 | 14.0 | 61075 | 2024-03-29 17:49:52 | MASTER-SAAO | (01h 10m 49.99s , -31d 14m 41.7s) | C | 60 | 18.1 | 61154 | 2024-03-29 17:51:12 | MASTER-SAAO | (01h 39m 13.90s , -23d 39m 40.5s) | C | 60 | 16.9 | 61234 | 2024-03-29 17:52:31 | MASTER-SAAO | (01h 24m 50.01s , -29d 08m 44.9s) | C | 60 | 14.7 | 61234 | 2024-03-29 17:52:31 | MASTER-SAAO | (01h 26m 51.79s , -29d 21m 39.0s) | C | 60 | 18.5 | 61393 | 2024-03-29 17:55:11 | MASTER-SAAO | (01h 40m 23.32s , -27d 13m 15.3s) | C | 60 | 16.3 | 61393 | 2024-03-29 17:55:11 | MASTER-SAAO | (01h 42m 22.94s , -27d 26m 08.1s) | C | 60 | 18.1 | 61473 | 2024-03-29 17:56:30 | MASTER-SAAO | (01h 40m 42.28s , -25d 32m 37.4s) | C | 60 | 17.5 | 61633 | 2024-03-29 17:59:10 | MASTER-SAAO | (01h 55m 49.18s , -23d 38m 38.3s) | C | 60 | 17.6 | 61712 | 2024-03-29 18:00:30 | MASTER-SAAO | (01h 52m 56.81s , -19d 51m 23.9s) | C | 60 | 16.7 | 62034 | 2024-03-29 18:05:51 | MASTER-SAAO | (01h 54m 19.42s , -21d 44m 25.8s) | C | 60 | 15.7 | Filter C is a clear (unfiltred) band.

The observation and reduction will continue. The message may be cited.

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