[AAVSO-HEN] GRB 070406: SARA upper limit

[grb at aavso.org]

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TITLE:   GCN CIRCULAR
NUMBER:  6251
SUBJECT: GRB 070406: SARA upper limit
DATE:    07/04/07 05:19:27 GMT
FROM:    Adria C. Updike at Clemson U  <aupdike at clemson.edu>

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

We imaged the field of GRB 070406 approximately 26 hours after Swift
Trigger 274153 with the SARA 0.9m at Kitt Peak under good weather conditions.
We obtained 20 300-second exposures in the R band.  We find no fading OT
candidate in the stacked images down to a limiting magnitude of R = 20.0
+/-  0.2 mag (based on calibration to USNO A2.0).

The Clemson University GRB Response Site may be found at:
http://people.clemson.edu/~kgarime/burst/index.php

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

Thanks to Alexander Kann for his input.

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