GRB 200819A: Kitab, TSHAO optical upper limit
Abstract
We observed the field of GRB 200819A (Dichiara et al., GCN 28263) with Zeiss-1000 telescope of Tien Shan Astronomical observatory starting on August 19 (UT) 18:03:47 and with RC-36 of Kitab observatory on (UT) 16:30:50. We do not detect any optical object within enhanced XRT position (Evans et al., GCN 28265). Preliminary photometry of the field is following. Date UT start t-T0 Filter Exp. OT Err. UL Telesope (mid, days) (s) 2020-08-19 16:30:50 0.05345 CR 3600 n/d n/d 20.0 RC-36 2020-08-19 18:03:47 0.10289 R 990 n/d n/d 21.2 Zeiss-1000 The photometry is based on nearby USNO-B1.0 stars. Ref.stars USNO-B1.0_id R2 1530-0056474 15.45 1530-0056771 15.06
- Publication:
-
GRB Coordinates Network
- Pub Date:
- August 2020
- Bibcode:
- 2020GCN.28266....1B