GCN Circular 23687
Subject
GRB 190114A: OSN Detection
Event
Date
2019-01-14T20:48:52Z (7 years ago)
From
Alexander Kann at IAA-CSIC <kann@iaa.es>
A. de Ugarte Postigo (HETH/IAA-CSIC and DARK/NBI), D. A. Kann, L. Izzo,
C. C. Thoene, M. Blazek, K. Bensch (all HETH/IAA-CSIC), and F. Aceituno
(IAA-CSIC) report:
We observed the optical afterglow of GRB 190114A (Siegel & LaPorte, GCN
#23678), detected by Swift (LaPorte et al., GCN #23677), with the T150
telescope of the Sierra Nevada Observatory (OSN). We obtained 5 x 360 s
images in the Ic band at 16.98 hours after the GRB. The afterglow is
well-detected in each single image.
Days Ic mag error
0.7075 20.41 0.10
Magnitudes are given in the AB system. They were measured vs. four
Pan-STARRS comparison stars, using the transformation equations of
Lupton (2005), and transformed back into AB mags.