GCN Circular 7545

C. Clemens, A. Kupcu Yoldas, J. Greiner, A. Yoldas, T. Kruehler (all MPE 
Garching) and G. Szokoly (Eoetvoes Univ., Budapest and MPE Garching) report 
on behalf of the GROND team:

We observed the field of GRB 080330 (Swift trigger 308041; Mao et al., GCN 
#7537) simultaneously in g', r', i', z', J, H and K with GROND (Greiner et 
al. 2008, PASP) mounted at the 2.2m ESO/MPI telescope at La Silla Observatory 
(Chile).

Observations started at 03:44:23 UT on March, 30th, 2008, about 3.1 mins after 
the GRB trigger. We found a bright point source at

RA (J2000.0) = 11h 17m 04.48s
DEC (J2000.0) = 30d 37' 24.4'',

coincident with the optical afterglow first reported by Klotz et al. (GCN 
#7536 and #7543).

Based on the first 240 s of effective exposures in J and H, we estimate 
magnitudes of

J=15.92 +/- 0.02 and H=15.45 +/- 0.01,

calibrated against 2MASS stars.