GCN Circular 34342
Subject
Fermi trigger No 712927418: Global MASTER-Net observations report
Date
2023-08-05T18:00:37Z (9 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-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 GRB230805.47 (trigger No 712927418,13h 53m 57.60s , +32d 30m 00.0s, R=9.1) errorbox 19746 sec after notice time and 19780 sec after trigger time at 2023-08-05 16:53:13 UT, with upper limit up to 18.4 mag. Observations started at twilight. The observations began at zenith distance = 66 deg. The sun altitude is -10.7 deg.
The galactic latitude b = 75 deg., longitude l = 57 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2250503
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
19870 | 2023-08-05 16:53:13 | MASTER-SAAO | (13h 50m 08.41s , +31d 15m 33.0s) | C | 180 | 16.6 |
19870 | 2023-08-05 16:53:13 | MASTER-SAAO | (13h 51m 07.23s , +31d 18m 27.8s) | C | 180 | 16.6 |
20082 | 2023-08-05 16:56:45 | MASTER-SAAO | (13h 50m 13.94s , +31d 14m 47.3s) | C | 180 | 17.1 |
20082 | 2023-08-05 16:56:45 | MASTER-SAAO | (13h 51m 12.86s , +31d 17m 41.0s) | C | 180 | 16.8 |
20262 | 2023-08-05 16:56:45 | MASTER-SAAO | (13h 51m 12.85s , +31d 17m 40.7s) | C | 540 | 17.6 | Coadd
20293 | 2023-08-05 17:00:16 | MASTER-SAAO | (13h 50m 08.93s , +31d 13m 56.4s) | C | 180 | 17.5 |
20473 | 2023-08-05 17:00:16 | MASTER-SAAO | (13h 50m 08.93s , +31d 13m 56.4s) | C | 540 | 18.4 | Coadd
20293 | 2023-08-05 17:00:16 | MASTER-SAAO | (13h 51m 07.93s , +31d 16m 48.8s) | C | 180 | 17.2 |
20492 | 2023-08-05 17:03:35 | MASTER-SAAO | (13h 50m 13.39s , +31d 14m 06.4s) | C | 180 | 17.5 |
20492 | 2023-08-05 17:03:35 | MASTER-SAAO | (13h 51m 12.37s , +31d 16m 57.5s) | C | 180 | 17.3 |
20704 | 2023-08-05 17:07:07 | MASTER-SAAO | (13h 50m 11.18s , +31d 15m 51.3s) | C | 180 | 18.0 |
20704 | 2023-08-05 17:07:07 | MASTER-SAAO | (13h 51m 10.30s , +31d 18m 41.3s) | C | 180 | 17.6 |
20884 | 2023-08-05 17:07:07 | MASTER-SAAO | (13h 51m 10.31s , +31d 18m 41.1s) | C | 540 | 18.3 | Coadd
20915 | 2023-08-05 17:10:38 | MASTER-SAAO | (13h 50m 11.16s , +31d 14m 43.3s) | C | 180 | 18.0 |
20915 | 2023-08-05 17:10:38 | MASTER-SAAO | (13h 51m 10.35s , +31d 17m 32.7s) | C | 180 | 17.7 |
21127 | 2023-08-05 17:14:10 | MASTER-SAAO | (13h 50m 14.73s , +31d 16m 03.7s) | C | 180 | 18.4 |
21127 | 2023-08-05 17:14:10 | MASTER-SAAO | (13h 51m 13.94s , +31d 18m 52.3s) | C | 180 | 18.0 |
22419 | 2023-08-05 17:35:42 | MASTER-SAAO | (13h 50m 14.66s , +31d 16m 54.5s) | C | 180 | 17.5 |
22419 | 2023-08-05 17:35:42 | MASTER-SAAO | (13h 51m 13.23s , +31d 19m 38.7s) | C | 180 | 17.4 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.