GCN Circular 22224
Subject
GRB 171205A: Mondy optical observations
Date
2017-12-10T10:17:25Z (6 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), A. Pozanenko (IKI), E. Klunko (ISTP), E. Mazaeva
(IKI) report on behalf of of larger GRB follow-up collaboration:
We observed the field of GRB 171205A (D'Elia et al., GCN 22177) with
AZT-33IK telescope of Sayan observatory (Mondy). We took several images
in R-filter under non-optimal weathe conditions on Dec. 08 and fair
condiotns on Dec. 09. The afterglow of GRB 171205A (Izzo et al. GCN
22180; Emery et al. GCN 22181; Butler et al. GCN 22182; Mao et al. GCN
22186; Choi et al. GCN 22188; Melandri et al. GCN 22189; Steeghs et al.
GCN 22190; Cobb et al. GCN 22192; Volnova et al. GCN 22193; Guidorzi et
al. GCN 22197; Schmidl et al. GCN 22198; Lipunov et al. GCN 22199;
Ugarte Postigo et al. GCN 22204) is detected on Dec. 09. Preliminary
photometry is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2017-12-08 21:18:28 3.59292 R 1200 n/d n/d 18.5
2017-12-09 20:44:55 4.57936 R 3300 18.4 0.1 21.7
The photometry is based on several nearby USNO-B1.0 stars previously
used in GCN 22193.