GRB 200122A: Xinglong-2.16m optical upper limit
Abstract
We observed the field of GRB 200122A (Sonbas et al., GCN 26844) using the Xinglong-2.16m telescope equipped with the BFOSC camera. Observations started at 22:14:52 UT on 2020-01-22 (i.e., 20.57 h after the BAT trigger), and 5x200 s R-band frames have been obtained. No optical afterglow is detected at the Swift XRT's position in our stacked image, down to a limiting magnitude of m(R) ~ 22.0, calibrated with the nearby PanSTARRS field.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- January 2020
- Bibcode:
- 2020GCN.26860....1L