[vsnet-grb-info 19208] GRB 170317A: GMG observation
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Fri Mar 17 23:58:49 JST 2017
TITLE: GCN CIRCULAR
NUMBER: 20889
SUBJECT: GRB 170317A: GMG observation
DATE: 17/03/17 14:58:21 GMT
FROM: Jirong Mao at Yunnan Obs <jirongmao_obs at ynao.ac.cn>
J. Mao, Y. Xin and J.-M. Bai (YNAO) report:
We observed the field of GRB 170317A (LaPorte et al., GCN 20885) with the 2.4-meter
optical telescope at Gao-Mei-Gu (GMG) station of Yunnan Observatories. Observations began
from 13:58:18 UT, about 4.2 hours after the trigger. We detected the afterglow with
R~19.96+/-0.10 mag, calibrated by a nearby USNO-B1.0 star.
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