GRB 200115A: Nanshan-0.6m optical upper limit
Abstract
We observed the field of GRB 200115A (Cenko et al., GCN 26771) using the 0.6m NEXT telescope located at Nanshan, Xinjiang, China. Observations started at 12:11:17 UT on 2020-01-15 (i.e., 20.9 min after the BAT trigger), and a series of 300 s R-band frames have been obtained. Observations are ongoing. No optical transient is detected in the Swift BAT's error circle from initial frames, down to a limiting magnitude of m(R) ~ 20.0, calibrated with the nearby SDSS field.
- Publication:
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GRB Coordinates Network
- Pub Date:
- January 2020
- Bibcode:
- 2020GCN.26772....1Z