ZTF21aayokph (AT2021lfa): continued Assy optical observations
Abstract
We observed the field of ZTF21aayokph (AT2021lfa) (Yao et al., GCN 29938) with AZT-20 telescope of Assy-Turgen observatory on 2021-05-17 and 2021-05-18. We still detect the optical transient (Yao et al., GCN 29938; Watson et al., GCN 29940; Butler et al., GCN 29941; Yao et al., GCN 29945; Fu et al., GCN 29948; Kim et al., GCN 29950; O'Connor et al., GCN 29952; Ho et al., GCN 29953; Pankov et al., GCN 29954; Lipunov et al., GCN 29959; Pankov et al., GCN 29964). Preliminary photometry of the optical transient is following Date UT start t-T0 Exp. Filter OT Err. UL(3sigma) (mid, days) (s) 2021-05-17 16:19:12 n/a 200*60 r' 23.60 0.28 23.9 2021-05-18 15:52:05 n/a 230*60 r' 23.67 0.29 24.0 The photometry is based on the nearby SDSS-DR12 stars.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- May 2021
- Bibcode:
- 2021GCN.30064....1P