GCN Circular 26819
Subject
LIGO/Virgo S200115j: Mondy upper limits for ZTF20aafqvyc/AT2020yq
Event
Date
2020-01-19T18:19:59Z (6 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), A. Pozanenko (IKI), S. Belkin (IKI), E. Klunko
(ISTP), A. Volnova (IKI) report on behalf of GRB IKI FuN:
We observed the ZTF20aafqvyc/AT2020yq (Anand et al., GCN 26767) found in
the localization region of LIGO/Virgo S200115j (GCN 26759, GCN
26807) with AZT-33IK telescope of Sayan observatory (Mondy) in two
epochs. We do not detect any source at the coordinates the
ZTF20aafqvyc/AT2020yq (Anand et al., GCN 26767).
Preliminary photometry of the field is following
Date UT start MJD Filter Exp. OT Err. UL(3sigma)
(mid, days) (s)
2020-01-15 17:21:36 58863.73028 R 10*120 n/d n/d 21.6
2020-01-16 17:10:33 58864.72261 R 10*120 n/d n/d 22.1
The photometry is based on the nearby USNO-B1.0 stars
USNO-B1.0 R2
1284-0073552 17.62
1284-0073507 18.38
1284-0073562 17.98
1284-0073542 16.97