GCN Circular 34047
Subject
ZTF23aaoohpy/AT2023lc: Mondy optical observations
Event
Date
2023-06-21T09:26:11Z (2 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI, HSE), E. Klunko (ISTP), A. Pozanenko (IKI), N. Pankov (HSE) report on behalf of GRB IKI FuN:
We observed the field of ATLAS23msn/ZTF23aaoohpy/AT2023lcr (Swain et al., GCN 34022) with AZT-33IK telescope of Mondy observatory in R-filter on 2023-06-20 starting (UT) 15:34:09 (mid exposure time is ~2.4 days after the ZTF discovery). We detect the optical counterpart (Gompertz et al., GCN34023; Kumar et al., GCN34025; Adami et al., GCN 34030; Perley et al, GCN 34031; Jiang et al., GCN 34040; Perley et al., GCN 34041; Fulton et al., 34042; Chen et al., GCN 34043). Preliminary photometry of a stacked image is following
Date UT start MJD Exp. Filter OT Err. UL(3sigma)
(mid exposure) (s)
2023-06-20 15:34:09 60115.66607639 25*120 R 21.42 0.17 22.4
The photometry is based on nearby SDSS-DR12 stars.
SDSS-DR12
RA DEC R(Lupton transformations)
16:31:20.4491016 +26:24:03.644928 18.124
16:31:41.2384008 +26:20:23.267580 17.545
16:31:32.6899656 +26:20:16.058832 18.238
16:31:31.3849992 +26:19:27.712488 18.804