GCN Circular 35232
Subject
GRB 231129A: optical upper limit in Mondy observatory
Date
2023-11-30T11:05:26Z (5 months ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
Via
legacy email
S. Belkin (IKI), E. Klunko (ISTP), A. Pozanenko (IKI), N. Pankov (IKI, HSE) report on behalf of GRB IKI FuN:
We observed the field of Swift GRB 231129A (Gropp et al., GCN 35208; Mereghetti et al., GCN 35209; Zhang et al., GCN 35210) with AZT-33IK telescope of Mondy observatory in R-filter on 2023-11-29 starting (UT) 10:43:30. We do not detect any optical objects within the enhanced Swift-XRT error box (Goad et al., GCN 35220). Preliminary photometry of a stacked image is following
Date UT start t-T0 Exp. Filter OT Err. UL(3sigma)
(mid, days) (s)
2023-11-29 10:43:30 0.25730 33x120 R n/d n/d 23.1
The photometry is based on nearby USNO-B1.0 stars.
USNO-B1.0
RA DEC R2
21:10:16.6747200 +41:33:09.000000 17.36
21:10:16.0548000 +41:32:49.822800 18.82