Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 20290

GRB 161218A: TAROT Calern observatory optical observations
2016-12-18T20:58:27Z (7 years ago)
Alain Klotz at IRAP-CNRS-OMP <>
Klotz A., Turpin D., Atteia J.L. (CNRS-OMP-IRAP),
Boer, M., Laugier, R. (CNRS-ARTEMIS),
Gendre B. (UVI - Etelman Obs.) report:

We imaged the field of GRB 161218A detected by SWIFT
(trigger 727288) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 49 min after the GRB trigger
at the end of the night. The elevation of the field
increased from 3 degrees above horizon and weather
conditions were good.

We co-added a series of exposures.
We do not detect any OT with a limiting magnitude of:
t0+49 min to t0+68 min : Rlim = 17.3

Magnitudes were estimated with the nearby USNO-B1 stars
and are not corrected for galactic dust extinction.
Looking for U.S. government information and services? Visit