GRB 200524A: CrAO optical observations
Abstract
We observed Fermi-LAT GRB 200524A (Dirirsa et al., GCN 27797; see also Pookalil et al., GCN 27809; Capalbi et al., GCN 27811; Gupta et al., GCN 27818) with ZTSH 2.6m telescope of CrAO observatory starting on 2020-05-24 (UT) 19:35:16 (Rumyantsev et al., GCN 27802). Optical afterglow discovered by ZTF (Ho et al., GCN 27799) and confirmed by several observations (Kumar et al., GCN 27800; Rumyantsev et al., GCN 27802; Sanwal et al., GCN 27803; Perley et al., GCN 27805; Kumar et al., GCN 27806; de Ugarte Postigo et al., GCN 27807; Blazek et al., GCN 27810; Ogawa et al., GCN 27813; Izzo,GCN 27817). Preliminary photometry of the afterglow is following Date, UT start, t-T0, Exp., Filter, OT, Err., UL (mid, days) 2020-05-24 19:35:16 0.60644 240 R 20.43 0.05 22.6 2020-05-24 19:39:28 0.60935 240 R 20.48 0.05 22.7 2020-05-24 19:43:39 0.61226 240 R 20.52 0.05 22.7 2020-05-24 19:47:52 0.61519 240 R 20.55 0.05 22.6 2020-05-24 19:52:03 0.61809 240 R 20.60 0.08 22.5 2020-05-24 19:56:15 0.62101 240 R 20.59 0.09 22.5 2020-05-24 20:00:27 0.62392 240 R 20.60 0.09 22.3 The photometry is based on nearby USNO-B1.0 stars USNO-B1.0_id R2 1508-0206198 15.78 1509-0204466 16.48 1509-0204434 16.53
- Publication:
-
GRB Coordinates Network
- Pub Date:
- May 2020
- Bibcode:
- 2020GCN.27821....1B