TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3749 SUBJECT: GRB050802: Tentative absorption redshift DATE: 05/08/03 20:25:25 GMT FROM: Johan U. Fynbo at U.Copenhagen Johan P. U. Fynbo, Jesper Sollerman, Brian L. Jensen, Jens Hjorth, Darach Watson, José María Castro Cerón (DARK cosmology centre/Niels Bohr Institute), Palle Moller (ESO), Thomas Augusteijn (Nordic Optical Telescope), Javier Gorosabel (IAA-CSIC), Klaas Wiersema (Amsterdam) report: "Using ALFOSC on the Nordic Optical Telescope we have obtained spectra of the afterglow of GRB 050802 (GCN 3734, 3739) on 2005, August 2.9 UT. We detect several absorption features which we tentatively identify as CIV and FeII lines, corresponding to a redshift of z=1.71. This tentative redshift is at odds with the interpretation of the UVOT results (GCN 3745). We encourage further observations."