GCN Circular 23497
Subject
GRB 181201A: continued optical observations in SAAO and Chilesope
Date
2018-12-03T17:38:47Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), E. Mazaeva (IKI), S. Belkin (IKI), D. Buckley (SAAO),
M. Krugov (AFIF), A. Pozanenko (IKI) report on behalf of IKI-FuN
follow-up collaboration:
We continue multicolor observation the optical afterglow (e.g.
Podesta et al., GCN 23470; Kong GCN 23475) of INTEGRAL GRB 181201A
(Mereghetti et al., GCN 23469) with 1m telescopes of SAAO (SAAO40in)
and Chilescope (RC1000) observatories. Preliminary photometry is
following
Date UT start t-T0 Filter Exp. OT Err. Telescope
(mid, days) (s)
2018-12-02 19:09:26 1.69544 r' 2*600 18.69 0.02 SAAO40in
2018-12-02 19:30:07 1.70980 i' 2*600 18.54 0.07 SAAO40in
2018-12-02 19:50:44 1.72759 g' 3*600 19.07 0.05 SAAO40in
2018-12-03 01:32:26 1.95794 r' 600 18.92 0.04 RC1000
The photometry is based on the SDSS DR12 star
SDSS-DR12_id g r i
J211710.81-123706.3 17.191 16.517 16.257