[AAVSO-HEN] GRB 090515: ROVOR Upper Limit

[grb at aavso.org]

The following is a GCN Circular circulated via the AAVSO network.
For an archive and more information on circulars visit:
http://lheawww.gsfc.nasa.gov/docs/gamcosray/legr/bacodine/gcn3_archive.html

TITLE:   GCN CIRCULAR
NUMBER:  9371
SUBJECT: GRB 090515: ROVOR Upper Limit
DATE:    09/05/15 23:34:03 GMT
FROM:    J. Ward Moody at BYU  <rovor.byu at gmail.com>

Cameron J. Pace, Richard L. Pearson, and J. Ward Moody report for
Brigham Young University’s ROVOR team:

We report our observations in the field of GRB 090515 (Swift trigger
352108, Beardmore et al., GCN 9356) beginning 37.73 minutes post-burst
at 05:22:53.376 UT.

Using the 0.41m ROVOR telescope in Delta, Utah, we combined 70 x 60
second exposures in the R-band. No detection of an afterglow was
obtained after stacking the images. An upper limit of 21.4 ± 0.1 mag
was found by calibrating the frames using stars in the MRK 501 field.