GCN Circular 23744
Subject
GRB 190106A: Discovery Channel Telescope observations
Date
2019-01-16T22:09:39Z (5 years ago)
From
Simone Dichiara at UMCP/NASA/GSFC <dichiara@umd.edu>
S.Dichiara (UMD, NASA-GSFC), P. Gatkine (UMD), J.M. Durbak (UMD),
E. Troja (UMD, NASA-GSFC), A. Kutyrev (UMD, NASA-GSFC), S. Veilleux (UMD),
report on behalf of a larger collaboration:
We observed at the optical counterpart of GRB 190106A (Sonbas et al. GCN
23615) using the Large Monolithic Imager (LMI) on the 4.3m Discovery
Channel Telescope (DCT) at Happy Jack, AZ. Observations start on January
08, 06:36:53 UT (about 41 hours after the Swift trigger) with SDSS r,
i and z filters.
We measured the following magnitudes:
Start Time Exposure Filter Magnitude
(hs from trigger) (s)
--------------------------------------------------------------------
41.036 3x120 r' 20.77 +- 0.03
41.157 3x120 i' 20.60 +- 0.05
41.279 3x120 z' 20.70 +- 0.15
---------------------------------------------------------------------
Magnitudes are calibrated against SDSS nearby stars:
J015939.43+235056.5 25.7308, J015938.69+235101.6, J015933.94+235145.7 and
J015923.06+235109.1.
We thank the staff of the Discovery Channel Telescope for assistance with
these observations.