GCN Circular 9058

Bill Allen (Vintage Lane Obs., Blenheim, New Zealand), Phil Yock (Auckland
Univ., NZ), A. de Ugarte Postigo (ESO Santiago), Ian Bond (Massey Univ., NZ),
John Hearnshaw (Univ. of Canterbury, NZ), Grant Christie (Stardome Obs., NZ),
Petr Kub�nek (GACE, Univ. of Valencia), S. Castillo (Univ. de M�laga),
J. M. Castro Cer�n (ESAC Madrid), T. Mateo Sanguino (Univ. de Huelva),
D. P�rez-Ram�rez (Univ. de Ja�n), M. Cervi�o, A. Claret, J. M. Garc�a Pelayo,
J.  Gorosabel, S. Guziy, M. Jel�nek, S. Mart�n Ruiz and A. J. Castro-Tirado
(IAA-CSIC Granada), report:

"Following the detection by Fermi LAT and GBM of GRB 090328 (McEnery
et al. GCNC 9044), follow-up observations were performed by the 0.6-m
Yock-Allen robotic telescope at the new BOOTES-3 astronomical station in
Blenheim (New Zealand). A co-added 1500s unfiltered image, obtained on
29 Mar (10:12-10:41 UT, i.e. 24.8 hr after the onset of the event) shows 
a rather bright optical afterglow at the UVOT position reported by Kennea et al. 
(GCNC 9046). We measure R~19.7+/-0.3 (clear filter), calibrated against USNO-B1.0
stars.  Additional observations are encouraged."

This message can be quoted.

[GCN OPS NOTE(31mar09):  Per author's request, the numerical values of the times
(which were local time) were converted to true UT time values; the "36.8 hrs"
was changed to "24.8"; and Cervino was added to the author list.]