GCN Circular 21811
Subject
LIGO/Virgo G299232: Maidanak observations of optical transient SwiftJ014008.5+343403.6
Date
2017-09-04T16:37:50Z (8 years ago)
From
Alexei Pozanenko at IKI,Moscow <grbgw.iki@gmail.com>
A. Pozanenko (IKI), A. Volnova (IKI), E. Mazaeva (IKI), B. Hafizov
(UBAI), O. Burhonov (UBAI) report on behalf of IKI-GW follow-up
collaboration:
We observed the field of the Optical Transient discovered by Swift/UVOT
(Emery et al., GCN 21733) with AZT-22 telescope of Maidanak
observatory starting on 2017-08-28 (UT) 21:25:37. We obtained several
images in R-filter. The optical transient (Emery et al., GCN 21733) is
not detected in a combined image. Preliminary photometry of the field
is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(Since LVC,mid, days) (s) (3 sigma)
2017-08-28 21:25:37 3.34167 R 3600 n/d n/d 23.0
Photometry is based on nearby USNO-B1.0 stars (R2 magnitudes).