[AAVSO-HEN] GRB 080702A: optical upper limit

[grb at aavso.org]

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TITLE:   GCN CIRCULAR
NUMBER:  7977
SUBJECT: GRB 080702A: optical upper limit
DATE:    08/07/14 14:40:04 GMT
FROM:    Giuseppe Greco at U Bologna  <giuseppe.greco2 at studio.unibo.it>

G. Greco (Bologna University), F. Terra (Second University of Roma "Tor
Vergata"), C. Bartolini, A. Guarnieri, A. Piccioni (Bologna University),
F. Munz, G. Pizzichini (INAF/IASF Bologna), D. Nanni (INAF/OAR and Second
University of Rome "Tor Vergata"), I. Bruni (Bologna Observatory) report:

We observed the field of GRB 080702A (GCN 7920, de Pasquale et al.)
with the 152 cm telescope located in Loiano under
clear sky conditions (seeing~2").

By adding three consecutive 10 min exposures in the Rc filter
at mean time 2008 July 02.996 UT we do not detect any afterglow
candidate in the XRT error circle (GCN 7923, Goad et al.).

Our 3-sigma limiting magnitude is R~21 (based on Nomad1 catalogue).
The image has been posted in our public directory
from where it can be retrieved by sftp using

hostname: ermione.bo.astro.it
username: publicGRB
password: GRB_bo.
directory: GRB080702A