GRB 200803A: Chilescope optical upper limit
Abstract
We observed the GRB 200803A (Fermi GBM Team, GCN 28196; Hamburg et al., GCN 28206) with Chilescope RC-1000 starting on 2020-08-05 (UT) 03:53:45 in r'-filter. We did not detect optical afterglow (Lipunov et al., GCN 28202). Preliminary photometry is following. Date UT start t-T0 Filter Exp. OT Err. UL (mid, days) (s) 2020-08-05 03:53:45 2.03425 r' 6*600 n/d n/d 21.5 The photometry is based on nearby USNO-B1.0 stars Ref.stars USNO-B1.0_id R2 0270-0863045 16.4 0270-0862955 15.5 0271-0884796 15.0
- Publication:
-
GRB Coordinates Network
- Pub Date:
- August 2020
- Bibcode:
- 2020GCN.28226....1B