GCN Circular 18960
Subject
GRB 160131A: iTelescope optical observations
Date
2016-01-31T19:52:46Z (8 years ago)
From
Veli-Pekka Hentunen at Taurus Hill Obs,A95 <veli-pekka.hentunen@kassiopeia.net>
Veli-Pekka Hentunen, Markku Nissinen and Tuomo Salmi (Taurus Hill
Observatory, Varkaus, Finland) report:
We have detected GRB 160131A optical afterglow at iTelescope observatory
(Siding Spring, Australia) using T9 0.32-m f/9 RCOS telescope and T17 and
T32 0.43-m f/6.8 astrographs. The observations were started at 2016-01-31
10:01:17 (UT). Several images using photometric R and V filters with 300 sec
and 120 sec exposure time were taken.
The afterglow was detected at the position RA 05:12:40.34 and DEC
-07:02:58.3.
The following magnitudes were obtained from the observations using
NOMAD1 0829-0078536 (R=15.390 and V=14.820) as a comparison star:
T32 observations
Tmid(s)+T0 Filter Exp. time Mag Mag. Err.
6197 V 300s 15.05 0.04
6796 V 300s 15.17 0.04
7395 V 300s 15.28 0.04
T17 observations
Tmid(s)+T0 Filter Exp. time Mag Mag. Err.
6651 R 4x300s 15.71 0.02
7946 R 4x300s 15.96 0.02
11649 R 4x300s 16.56 0.03
12952 R 4x300s 16.68 0.03
14244 R 4x300s 16.86 0.04
15709 R 4x300s 16.99 0.04
T9 observations
Tmid(s)+T0 Filter Exp. time Mag Mag. Err.
14761 V 5x120s 16.27 0.34
15454 V 5x120s 16.43 0.37
16190 V 5x120s 16.55 0.42
17083 V 5x120s 16.55 0.44
17767 V 5x120s 16.59 0.43
18452 V 5x120s 16.65 0.48
19179 V 5x120s 16.70 0.54
20295 V 5x120s 16.75 0.56
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus