TITLE:   GCN CIRCULAR
NUMBER:  7967
SUBJECT: GRB 080710: Rapid PROMPT Observations
DATE:    08/07/10 22:30:01 GMT
FROM:    Thomas Summers Brennan at UNC/GRB Group  <bre@email.unc.edu>

E. Weaver, J. P. West, D. Reichart, M. Nysewander, A. LaCluyze, K. 
Ivarsen, J. A. Crain, A. Foster, T. Brennan, J. Haislip, R. Holmes, R. 
Rhine, M. Schubel, J. Styblova, and A. Trotter report:

Skynet observed the localization of GRB 080710 (Sbarufatti et al., GCN 
7957) with three of the 16" PROMPT telescopes at CTIO beginning 64 
seconds after the trigger in BVRI.

We detect the afterglow (Sbarufatti et al., GCN 7957) in BVRI.  At 627
seconds after the burst we measure B ~ 17.7 mag (calibrated to 9 USNO
B1 stars), at 626 seconds we measure V ~ 17.6 mag (calibrated to 12
USNO B1 stars), at 535 seconds we measure R ~ 17.6 mag (calibrated to
13 NOMAD stars), and at 444 seconds we measure I ~ 16.9 mag
(calibrated to 11 USNO B1 stars).