GRB 201020A: CrAO/ZTSH optical observations
Abstract
We observed the GRB 201020A (Ambrosi et al., GCN 28696) with ZTSH 2.6m telescope of CrAO observatory starting on Oct. 20 (UT) 16:06:30. The optical afterglow (Ambrosi et al., GCN 28696; Adachi et al., GCN 28697; Fu et al., GCN 28701; Belkin et al., GCN 28703) is clearly detected in R filter. Preliminary photometry of the afterglow in a combined image is following Date UT start t-T0 Filter Exp. OT err UL(3sigma) (mid, days) (s) 2018-10-20 16:06:30 0.42991 R 30*120 20.00 0.10 21.5 The photometry is based on several nearby USNO-B1.0 (R2) stars.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- October 2020
- Bibcode:
- 2020GCN.28708....1P