GCN Circular 19483
Subject
GRB 160601A: Mondy optical observations
Date
2016-06-01T19:54:08Z (8 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), E. Klunko (ISTP), A. Volnova (IKI), I. Korobtsev
(ISTP), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of the Swift GRB 160601A (Kocevski et al., GCN
19478) with AZT-33IK telescope of Sayan observatory (Mondy) starting on
June, 01 (UT) 15:00:41. We obtained several images in R-filter under
good weather conditions and FWHM of 1.5 arcsec. Using only part of
images available we marginally detect (S/N ~2) a source at the edge of
Swift-XRT position (Kocevski et al., GCN 19478). Coordinates of the
source are (J2000) 15:39:44.43 +64:32:19.3 with uncertainty of 1 arcsec.
Preliminary photometry of the source is R~22.3, and details of
observations are following
Date UT start t-T0 Filter Exp. OT(?) UpperLimit (3 sigma)
(mid, days) (s)
2016-06-01 15:00:41 0.03026 R 16*60 22.3 21.8
Photometry is based on nearby SDSS-DR9 stars, Lupton transformations into R:
SDSS-DR9_id R(Lupton)
J153959.67+643325.7 16.72
J153956.37+643102.2 17.00
J153931.88+643247.0 17.02
J153927.50+643304.3 19.23
J153942.70+643016.4 16.27
We will update the results after all the data will be available.