GCN Circular 5052
A. Cucchiara (Penn State), P.A. Price (IfA, Hawaii), D.B. Fox, (Penn State), S.B. Cenko (SRL, Caltech) and B.P. Schmidt (RSAA, ANU) report on behalf of a larger collaboration: We have observed the optical afterglow of GRB 060502 (La Parola et al., GCN 5047, Cenko et al., 5048) with the GMOS instrument on Gemini North telescope. Observations consisted of 2 x 1800 sec exposures with the R400 grating, commencing at 2006 May 2.34 UTC. In the summed spectrum, we identify an absorption system consisting of Fe II, Mg II and Mg I at a redshift of z ~ 1.51. No other absorption or emission line systems are apparent. We acknowledge the rapid response effort of Gemini personnel that yielded these data.