[AAVSO-HEN] GRB 070520B: SARA upper limit

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TITLE:   GCN CIRCULAR
NUMBER:  6447
SUBJECT: GRB 070520B: SARA upper limit
DATE:    07/05/22 00:26:39 GMT
FROM:    Adria C. Updike at Clemson U  <aupdike at clemson.edu>

A. C. Updike, J. R. Puls, and D. H. Hartmann (Clemson University) report 
on behalf of the Clemson GRB Follow-Up Team:

We used the 0.9m SARA telescope on Kitt Peak to image the field of GRB 
070520B (GCN 6425, Moretti et al.) under decent weather conditions 
beginning 9.5 hours after the burst trigger (279898).  In 52 minutes of 
stacked R-band exposures, we detect no new sources down to a limiting 
magnitude of 20.2 +/- 0.4 based on calibration to 8 USNO B1.0 stars.

The SARA Homepage can be found at:
 http://saraobservatory.org

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