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GCN Circular 24986

Subject

GRB 190627A: Discovery Channel Telescope late time observations

Date

2019-07-05T16:02:47Z (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), S.B. Cenko (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 24888Not found
 
 
) using the Large Monolithic Imager (LMI) on the 4.3m Discovery
Channel Telescope (DCT) at Happy Jack, AZ. Observations started on July
 05, 07:46:14 UT (about 7.85 days after the Swift trigger) with SDSS r
and i filters.
We detected the optical counterpart (Siegel & Sonbas, GCN 24889Not found
 
 
)
measuring the following AB magnitudes:

Start Time           Exposure    Filter    Magnitude
(days from trigger)     (s)
-------------------------------------------------------
7.85               4x300          r'    23.36 +- 0.11
7.87               4x300          i'    23.17 +- 0.11
-------------------------------------------------------

Magnitudes are calibrated against Pan-STARRS catalog.

We thank the staff of the Discovery Channel Telescope in particular
Casey Kyte, Ishara Nisley for assistance with these observations.