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GRB 090813: i-band observations from 1.5m OSN telescope.
Gorosabel, J.; de Ugarte Postigo, A.; Sota, A.; Guziy, S.; Jelinek, M.; Kubanek, P.; Castro-Tirado, A. J.
GRB Coordinates Network, Circular Service, 9820, 1 (2009)
12/2009
ABSTRACT
We performed I-band observations of the GRB 090813 optical afterglow (Gorosabel et al. GCN 9782; Cenko et al. GCN 9783; Smith et al. GCN 9784) with the 1.5m telescope of Observatorio de Sierra Nevada. The observations were carried on Aug 13.8979 - 13.9667 UT with a total exposure time of 4950 seconds. No object brigther than I = 21.9 was detected at the afterglow position.