GCN Circular 34242
Subject
Fermi trigger No 711805358: Global MASTER-Net observations report
Date
2023-07-24T00:45:58Z (10 months ago)
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, D. Vlasenko,
G.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin
(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. Gres, N.M. Budnev
(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),
A. Gabovich, V.Yurkov
(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 GRB230723.49 (trigger No 711805358,16h 37m 21.60s , -08d 20m 24.0s, R=3.59) errorbox 18869 sec after notice time and 18900 sec after trigger time at 2023-07-23 16:57:33 UT, with upper limit up to 20.0 mag. Observations started at twilight. The observations began at zenith distance = 42 deg. The sun altitude is -13.0 deg.
MASTER-OAFA robotic telescope located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB230723.49 errorbox 46157 sec after notice time and 46188 sec after trigger time at 2023-07-24 00:32:21 UT, with upper limit up to 18.5 mag. The observations began at zenith distance = 27 deg. The sun altitude is -33.5 deg.
The galactic latitude b = 24 deg., longitude l = 9 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2243778
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
18990 | 2023-07-23 16:57:33 | MASTER-SAAO | (16h 40m 11.83s , -05d 25m 14.5s) | C | 180 | 18.1 |
18990 | 2023-07-23 16:57:33 | MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) | C | 180 | 19.1 |
19170 | 2023-07-23 16:57:33 | MASTER-SAAO | (16h 41m 05.66s , -05d 23m 41.6s) | C | 540 | 19.9 | Coadd
19201 | 2023-07-23 17:01:03 | MASTER-SAAO | (16h 40m 18.49s , -05d 24m 49.4s) | C | 180 | 18.4 |
19201 | 2023-07-23 17:01:03 | MASTER-SAAO | (16h 41m 12.34s , -05d 23m 19.8s) | C | 180 | 19.3 |
19401 | 2023-07-23 17:04:23 | MASTER-SAAO | (16h 40m 15.71s , -05d 23m 16.5s) | C | 180 | 17.3 |
19581 | 2023-07-23 17:04:23 | MASTER-SAAO | (16h 40m 15.34s , -05d 23m 38.4s) | C | 540 | 19.7 | Coadd
19401 | 2023-07-23 17:04:23 | MASTER-SAAO | (16h 41m 09.18s , -05d 22m 10.8s) | C | 180 | 19.3 |
19613 | 2023-07-23 17:07:55 | MASTER-SAAO | (16h 40m 15.69s , -05d 24m 33.8s) | C | 180 | 19.4 |
19613 | 2023-07-23 17:07:55 | MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) | C | 180 | 19.4 |
19793 | 2023-07-23 17:07:55 | MASTER-SAAO | (16h 41m 09.24s , -05d 23m 28.4s) | C | 540 | 20.0 | Coadd
19823 | 2023-07-23 17:11:26 | MASTER-SAAO | (16h 40m 19.60s , -05d 23m 01.3s) | C | 180 | 19.4 |
19823 | 2023-07-23 17:11:26 | MASTER-SAAO | (16h 41m 13.25s , -05d 21m 56.3s) | C | 180 | 19.4 |
20035 | 2023-07-23 17:14:58 | MASTER-SAAO | (16h 40m 13.42s , -05d 23m 42.4s) | C | 180 | 19.5 |
20215 | 2023-07-23 17:14:58 | MASTER-SAAO | (16h 40m 13.43s , -05d 23m 42.4s) | C | 540 | 20.0 | Coadd
20035 | 2023-07-23 17:14:58 | MASTER-SAAO | (16h 41m 07.19s , -05d 22m 38.3s) | C | 180 | 19.5 |
20246 | 2023-07-23 17:18:29 | MASTER-SAAO | (16h 40m 13.04s , -05d 22m 41.3s) | C | 180 | 19.5 |
20246 | 2023-07-23 17:18:29 | MASTER-SAAO | (16h 41m 06.90s , -05d 21m 37.6s) | C | 180 | 19.5 |
20426 | 2023-07-23 17:18:29 | MASTER-SAAO | (16h 41m 06.91s , -05d 21m 37.6s) | C | 540 | 19.9 | Coadd
20457 | 2023-07-23 17:22:00 | MASTER-SAAO | (16h 40m 19.20s , -05d 23m 39.0s) | C | 180 | 19.3 |
20457 | 2023-07-23 17:22:00 | MASTER-SAAO | (16h 41m 13.11s , -05d 22m 36.3s) | C | 180 | 19.3 |
20669 | 2023-07-23 17:25:31 | MASTER-SAAO | (16h 40m 13.37s , -05d 24m 36.2s) | C | 180 | 19.5 |
20849 | 2023-07-23 17:25:31 | MASTER-SAAO | (16h 40m 13.39s , -05d 24m 36.2s) | C | 540 | 20.0 | Coadd
20669 | 2023-07-23 17:25:31 | MASTER-SAAO | (16h 41m 07.34s , -05d 23m 34.5s) | C | 180 | 19.5 |
20879 | 2023-07-23 17:29:02 | MASTER-SAAO | (16h 40m 18.76s , -05d 24m 23.6s) | C | 180 | 19.4 |
20879 | 2023-07-23 17:29:02 | MASTER-SAAO | (16h 41m 12.78s , -05d 23m 22.0s) | C | 180 | 19.4 |
21059 | 2023-07-23 17:29:02 | MASTER-SAAO | (16h 41m 12.80s , -05d 23m 22.0s) | C | 540 | 20.0 | Coadd
21090 | 2023-07-23 17:32:33 | MASTER-SAAO | (16h 40m 15.53s , -05d 22m 38.4s) | C | 180 | 19.3 |
21091 | 2023-07-23 17:32:33 | MASTER-SAAO | (16h 41m 09.64s , -05d 21m 37.0s) | C | 180 | 19.4 |
21303 | 2023-07-23 17:36:05 | MASTER-SAAO | (16h 40m 15.53s , -05d 24m 23.0s) | C | 180 | 19.2 |
21483 | 2023-07-23 17:36:05 | MASTER-SAAO | (16h 40m 15.51s , -05d 24m 23.0s) | C | 540 | 20.0 | Coadd
21303 | 2023-07-23 17:36:06 | MASTER-SAAO | (16h 41m 09.66s , -05d 23m 22.3s) | C | 180 | 19.3 |
21515 | 2023-07-23 17:39:37 | MASTER-SAAO | (16h 40m 18.04s , -05d 22m 53.8s) | C | 180 | 19.5 |
21515 | 2023-07-23 17:39:37 | MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) | C | 180 | 19.4 |
21695 | 2023-07-23 17:39:37 | MASTER-SAAO | (16h 41m 12.18s , -05d 21m 53.2s) | C | 540 | 20.0 | Coadd
21726 | 2023-07-23 17:43:09 | MASTER-SAAO | (16h 40m 12.64s , -05d 23m 27.9s) | C | 180 | 19.4 |
21726 | 2023-07-23 17:43:09 | MASTER-SAAO | (16h 41m 06.84s , -05d 22m 27.9s) | C | 180 | 19.4 |
21937 | 2023-07-23 17:46:40 | MASTER-SAAO | (16h 40m 11.90s , -05d 22m 26.9s) | C | 180 | 19.4 |
21937 | 2023-07-23 17:46:40 | MASTER-SAAO | (16h 41m 06.19s , -05d 21m 26.9s) | C | 180 | 19.5 |
22149 | 2023-07-23 17:50:12 | MASTER-SAAO | (16h 40m 19.45s , -05d 23m 24.3s) | C | 180 | 19.5 |
22149 | 2023-07-23 17:50:12 | MASTER-SAAO | (16h 41m 13.80s , -05d 22m 25.3s) | C | 180 | 19.5 |
46279 | 2023-07-24 00:32:21 | MASTER-OAFA | (16h 39m 52.71s , -05d 14m 19.4s) | C | 180 | 18.5 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.