GRB 210702A: Chilescope optical observations
Abstract
We observed the field of Swift GRB 210702A (Lien et al., GCN 30351) with Chilescope RC-1000 starting on 2021-07-02 (UT) 23:40:26 in r'-filter. Within enhanced XRT position (D'Elia et al., GCN 30358) we clearly detect the afterglow (Lien et al., GCN 30351; Lipunov et al., GCN 30352; Groot et al., GCN 30354; Kuin et al., GCN 30355; Kuin et al., GCN 30356; Xu et al., GCN 30357; Romanov et al., GCN 30364). Preliminary photometry of the afterglow is following Date UT start t-T0 Filter Exp. OT(AB) Err. UL(AB) (mid, days) (s) 2021-07-02 23:40:26 0.193202 r' 1*600 17.01 0.05 19.7 The photometry is based on nearby stars from the APASS_DR8 RA DEC r 11:14:16.46880 -36:49:58.2132 15.187 11:14:36.96576 -36:48:30.0132 15.320
- Publication:
-
GRB Coordinates Network
- Pub Date:
- July 2021
- Bibcode:
- 2021GCN.30365....1B