TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1095 SUBJECT: HETE Trigger #1760 (GRB 010920B?): new optical source = asteroid DATE: 01/09/20 09:51:37 GMT FROM: Josh Bloom at CIT HETE Trigger #1760 (GRB 010920B?): new optical source = asteroid J. S. Bloom, D. Reichart, D. W. Fox, P. D. Nicholson, C. Dumas, S. R. Kulkarni, P. A. Price, R. A. Simcoe report on behalf of the larger Caltech-NRAO-CARA GRB collaboration: "A follow-up image to those reported in GCN #1094 obtained at Palomar shows that the 'new optical source' moved by ~29 arcsec in 66 min, primarily westwardly. Given the apparent magnitude, location near the ecliptic, and high proper motion, the source is likely an unrelated Main Belt asteroid." This message may be cited.