GCN Circular 27333
Subject
GRB 200306C: SAO RAS observations of OT
Date
2020-03-07T01:20:14Z (5 years ago)
From
Moskvitin Alexander at SAO RAS <mosk@sao.ru>
A. Moskvitin on behalf of the larger GRB follow-up team report.
We observed the field of the GRB 200306C (Gropp et al. GCNC #27326)
with the 1-m telescope of SAO RAS in BVRc filters. The observations
were started in semi-automatic mode since 2 minutes after the trigger.
We clearly detected the OT discovered by Swift/UVOT, MASTER-Net
(Lipunov et al. GCNC #27324/27325/27327), FRAM-ORM (Jelinek et al.
GCNC #27328), BOOTES-1 (Hu et al., GCNC #27329) with the coordinates:
R. A. = 13:14:13.44, Decl. = +11:16:11.8 +/- 0".5, Epoch = 2000.0.
Preliminary R band photometry of the OT:
Tmid-T0, s exp., s Rmag +/- err
151 30 15.29 +/- 0.06
183 30 15.77 +/- 0.03
230 30 15.97 +/- 0.12
276 30 16.14 +/- 0.04
388 60 16.49 +/- 0.05
464 60 16.69 +/- 0.07
541 60 16.99 +/- 0.04
The calibration were done against nearby SDSS stars (Lupton, 2005).