[vsnet-grb-info 9706] GRB 100901A: SARA-N observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  11174
SUBJECT: GRB 100901A: SARA-N observations
DATE:    10/09/02 12:28:03 GMT
FROM:    Adria C. Updike at Clemson U  <aupdike at clemson.edu>

Adria C. Updike, Dieter H. Hartmann (Clemson University) and William Keel,
Erin Darnell (U Alabama) report:

We observed the field of GRB 100901A (Immler et al., GCN 11159) with the
0.9m SARA-North telescope located at KPNO beginning 18 hours and 45
minutes after the trigger under good conditions.  In 240s exposures, we
clearly detect the afterglow in all images.

Filter    Mag     Mag error    UT Start
---------------------------------------
B         18.7    0.1          08:20
V         18.2    0.1          08:24
R         18.0    0.1          08:28
I         17.9    0.1          08:32

Magnitudes are reported relative to the USNO B1.0 and NOMAD catalogs field
stars. Observations in all bands continued for 4 hours.  Further
observations are planned.