[vsnet-grb-info 21645] GRB 190106A: Discovery Channel Telescope observations
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Thu Jan 17 07:10:53 JST 2019
TITLE: GCN CIRCULAR
NUMBER: 23744
SUBJECT: GRB 190106A: Discovery Channel Telescope observations
DATE: 19/01/16 22:09:39 GMT
FROM: Simone Dichiara at UMCP/NASA/GSFC <dichiara at 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.
More information about the vsnet-grb-info
mailing list