GCN Circular 34578
Subject
Fermi GRB 230827A: Global MASTER-Net observations report
Date
2023-08-27T19:31:03Z (8 months ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
legacy email
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-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 230827A ( Fermi GBM team, GCN 34575) errorbox 53 sec after notice time and 86 sec after trigger time at 2023-08-27 18:19:18 UT, with upper limit up to 17.8 mag. The observations began at zenith distance = 74 deg. The sun altitude is -18.8 deg.
MASTER-Kislovodsk robotic telescope located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB 230827A errorbox 61 sec after notice time and 94 sec after trigger time at 2023-08-27 18:19:27 UT, with upper limit up to 17.5 mag. The observations began at zenith distance = 70 deg. The sun altitude is -23.9 deg.
The galactic latitude b = -42 deg., longitude l = 25 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2261859
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
96 | 2023-08-27 18:19:18 | MASTER-Tavrida | (21h 16m 19.41s , -22d 49m 36.6s) | C | 20 | 13.7 |
104 | 2023-08-27 18:19:27 | MASTER-Kislovodsk | (21h 18m 43.33s , -22d 37m 28.1s) | C | 20 | 15.5 |
104 | 2023-08-27 18:19:27 | MASTER-Kislovodsk | (21h 23m 17.26s , -23d 01m 43.3s) | C | 20 | 14.5 |
127 | 2023-08-27 18:19:49 | MASTER-Tavrida | (21h 05m 33.35s , -22d 39m 05.5s) | C | 20 | 15.1 |
145 | 2023-08-27 18:20:07 | MASTER-Kislovodsk | (21h 18m 38.34s , -22d 38m 28.4s) | C | 20 | 15.5 |
145 | 2023-08-27 18:20:07 | MASTER-Kislovodsk | (21h 23m 12.27s , -23d 02m 45.3s) | C | 20 | 14.6 |
159 | 2023-08-27 18:20:16 | MASTER-Tavrida | (21h 05m 33.35s , -22d 38m 05.6s) | C | 30 | 15.4 |
190 | 2023-08-27 18:20:47 | MASTER-Kislovodsk | (21h 18m 44.53s , -22d 38m 17.4s) | C | 30 | 15.8 |
190 | 2023-08-27 18:20:47 | MASTER-Kislovodsk | (21h 23m 18.58s , -23d 02m 32.4s) | C | 30 | 14.9 |
201 | 2023-08-27 18:20:53 | MASTER-Tavrida | (21h 05m 39.14s , -22d 39m 06.7s) | C | 40 | 15.7 |
245 | 2023-08-27 18:21:37 | MASTER-Kislovodsk | (21h 18m 41.77s , -22d 36m 53.9s) | C | 40 | 15.9 |
245 | 2023-08-27 18:21:37 | MASTER-Kislovodsk | (21h 23m 16.72s , -23d 01m 12.9s) | C | 40 | 14.6 |
311 | 2023-08-27 18:22:38 | MASTER-Kislovodsk | (21h 18m 41.83s , -22d 38m 12.2s) | C | 50 | 16.0 |
311 | 2023-08-27 18:22:38 | MASTER-Kislovodsk | (21h 23m 16.69s , -23d 02m 30.9s) | C | 50 | 14.6 |
391 | 2023-08-27 18:23:48 | MASTER-Kislovodsk | (21h 18m 43.78s , -22d 36m 30.1s) | C | 70 | 16.1 |
391 | 2023-08-27 18:23:48 | MASTER-Kislovodsk | (21h 23m 18.49s , -23d 00m 48.5s) | C | 70 | 14.8 |
663 | 2023-08-27 18:27:55 | MASTER-Kislovodsk | (21h 15m 12.98s , -23d 39m 12.8s) | P- | 120 | 16.5 |
828 | 2023-08-27 18:27:55 | MASTER-Kislovodsk | (21h 15m 12.98s , -23d 39m 12.8s) | P- | 450 | 17.4 | Coadd
663 | 2023-08-27 18:27:55 | MASTER-Kislovodsk | (21h 15m 11.97s , -24d 02m 49.0s) | P| | 120 | 14.2 |
762 | 2023-08-27 18:29:24 | MASTER-Tavrida | (21h 12m 25.92s , -23d 55m 20.9s) | C | 140 | 16.4 |
818 | 2023-08-27 18:30:16 | MASTER-Kislovodsk | (21h 15m 19.41s , -23d 40m 15.8s) | P- | 150 | 16.6 |
818 | 2023-08-27 18:30:16 | MASTER-Kislovodsk | (21h 15m 18.09s , -24d 03m 58.0s) | P| | 150 | 15.0 |
926 | 2023-08-27 18:31:53 | MASTER-Tavrida | (21h 12m 23.87s , -23d 54m 04.8s) | C | 170 | 16.6 |
1109 | 2023-08-27 18:34:51 | MASTER-Tavrida | (21h 12m 23.91s , -23d 55m 43.2s) | C | 180 | 16.6 |
1204 | 2023-08-27 18:36:26 | MASTER-Kislovodsk | (21h 15m 19.86s , -23d 40m 56.0s) | P- | 180 | 16.8 |
1204 | 2023-08-27 18:36:26 | MASTER-Kislovodsk | (21h 15m 19.22s , -24d 04m 35.5s) | P| | 180 | 14.6 |
1297 | 2023-08-27 18:38:00 | MASTER-Tavrida | (21h 12m 26.53s , -23d 53m 56.3s) | C | 180 | 16.9 |
1404 | 2023-08-27 18:39:47 | MASTER-Kislovodsk | (21h 15m 16.77s , -23d 39m 34.8s) | P- | 180 | 16.7 |
1584 | 2023-08-27 18:39:47 | MASTER-Kislovodsk | (21h 15m 16.78s , -23d 39m 34.7s) | P- | 540 | 17.5 | Coadd
1404 | 2023-08-27 18:39:47 | MASTER-Kislovodsk | (21h 15m 15.26s , -24d 03m 02.1s) | P| | 180 | 14.5 |
1484 | 2023-08-27 18:41:06 | MASTER-Tavrida | (21h 12m 21.56s , -23d 54m 47.9s) | C | 180 | 16.9 |
1605 | 2023-08-27 18:43:07 | MASTER-Kislovodsk | (21h 15m 16.92s , -23d 40m 43.4s) | P- | 180 | 16.8 |
1605 | 2023-08-27 18:43:07 | MASTER-Kislovodsk | (21h 15m 16.75s , -24d 04m 26.4s) | P| | 180 | 14.6 |
1670 | 2023-08-27 18:44:12 | MASTER-Tavrida | (21h 12m 21.63s , -23d 53m 47.4s) | C | 180 | 16.9 |
1806 | 2023-08-27 18:46:28 | MASTER-Kislovodsk | (21h 15m 19.31s , -23d 39m 33.5s) | P- | 180 | 16.8 |
1806 | 2023-08-27 18:46:28 | MASTER-Kislovodsk | (21h 15m 18.56s , -24d 03m 08.4s) | P| | 180 | 14.6 |
1858 | 2023-08-27 18:47:20 | MASTER-Tavrida | (21h 12m 26.71s , -23d 54m 47.6s) | C | 180 | 16.9 |
2006 | 2023-08-27 18:49:49 | MASTER-Kislovodsk | (21h 15m 14.52s , -23d 40m 06.2s) | P- | 180 | 16.7 |
2006 | 2023-08-27 18:49:49 | MASTER-Kislovodsk | (21h 15m 13.77s , -24d 03m 41.7s) | P| | 180 | 14.6 |
2046 | 2023-08-27 18:50:28 | MASTER-Tavrida | (21h 12m 20.27s , -23d 55m 45.7s) | C | 180 | 17.2 |
2234 | 2023-08-27 18:53:37 | MASTER-Tavrida | (21h 12m 26.77s , -23d 55m 31.3s) | C | 180 | 17.3 |
2424 | 2023-08-27 18:56:46 | MASTER-Tavrida | (21h 12m 24.32s , -23d 53m 45.3s) | C | 180 | 17.4 |
2612 | 2023-08-27 18:59:54 | MASTER-Tavrida | (21h 12m 24.35s , -23d 55m 37.5s) | C | 180 | 17.3 |
2750 | 2023-08-27 19:02:12 | MASTER-Kislovodsk | (21h 15m 21.73s , -24d 03m 38.2s) | C | 180 | 15.0 |
2750 | 2023-08-27 19:02:12 | MASTER-Kislovodsk | (21h 15m 22.82s , -23d 39m 57.4s) | C | 180 | 13.7 |
2801 | 2023-08-27 19:03:04 | MASTER-Tavrida | (21h 12m 27.29s , -23d 53m 46.8s) | C | 180 | 17.5 |
2950 | 2023-08-27 19:05:33 | MASTER-Kislovodsk | (21h 15m 16.60s , -23d 40m 57.0s) | C | 180 | 15.6 |
2950 | 2023-08-27 19:05:33 | MASTER-Kislovodsk | (21h 15m 16.79s , -24d 04m 42.4s) | C | 180 | 14.7 |
2989 | 2023-08-27 19:06:11 | MASTER-Tavrida | (21h 12m 21.57s , -23d 54m 40.1s) | C | 180 | 17.5 |
3151 | 2023-08-27 19:08:53 | MASTER-Kislovodsk | (21h 22m 53.28s , -23d 47m 21.9s) | C | 180 | 15.8 |
3151 | 2023-08-27 19:08:53 | MASTER-Kislovodsk | (21h 22m 53.30s , -24d 11m 08.0s) | C | 180 | 14.9 |
3179 | 2023-08-27 19:09:22 | MASTER-Tavrida | (21h 12m 22.70s , -23d 53m 39.3s) | C | 180 | 17.5 |
3351 | 2023-08-27 19:12:14 | MASTER-Kislovodsk | (21h 22m 51.42s , -23d 45m 41.3s) | C | 180 | 15.6 |
3352 | 2023-08-27 19:12:14 | MASTER-Kislovodsk | (21h 22m 51.71s , -24d 09m 28.0s) | C | 180 | 14.8 |
3368 | 2023-08-27 19:12:30 | MASTER-Tavrida | (21h 12m 28.11s , -23d 54m 38.6s) | C | 180 | 17.5 |
3552 | 2023-08-27 19:15:34 | MASTER-Kislovodsk | (21h 22m 53.18s , -21d 47m 16.1s) | C | 180 | 15.8 |
3552 | 2023-08-27 19:15:34 | MASTER-Kislovodsk | (21h 22m 53.69s , -22d 10m 54.6s) | C | 180 | 14.7 |
3555 | 2023-08-27 19:15:38 | MASTER-Tavrida | (21h 12m 22.71s , -23d 55m 37.5s) | C | 180 | 17.8 |
3744 | 2023-08-27 19:18:46 | MASTER-Tavrida | (21h 12m 28.12s , -23d 55m 33.6s) | C | 180 | 17.6 |
3933 | 2023-08-27 19:21:55 | MASTER-Tavrida | (21h 12m 24.54s , -23d 53m 59.0s) | C | 180 | 17.7 |
3953 | 2023-08-27 19:22:15 | MASTER-Kislovodsk | (21h 22m 49.92s , -21d 46m 30.2s) | C | 180 | 15.7 |
3953 | 2023-08-27 19:22:15 | MASTER-Kislovodsk | (21h 22m 51.71s , -22d 10m 16.6s) | C | 180 | 14.8 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.