Skip to main content
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. See news and announcements

GCN Circular 17197

GRB141220A: 1.23m CAHA I-band observations
2014-12-20T07:52:06Z (9 years ago)
Javier Gorosabel at IAA-CSIC <>
J. Gorosabel (IAA-CSIC/UPV-EHU), S. Hellmich (DLR), A. de Ugarte Postigo (IAA-CSIC), S. Mottola (DLR), C. Thoene (IAA-CSIC), report on behalf of a larger collaboration:

We observed the field of GRB 141220A with the 1.23m CAHA in the I-band starting  ~8 min post burst. A bright afterglow is detected at RA(J2000)=13:00:15.76, DEC(J2000)=32:08:46:4 (+/-0.8"). We note an important discrepancy with the initial position reported by Swift.
Looking for U.S. government information and services? Visit