TITLE: GCN GRB OBSERVATION REPORT NUMBER: 737 SUBJECT: possible optical counterpart of GRB 000630 DATE: 00/07/01 00:29:58 GMT FROM: Corrado Bartolini at Universita di Bologna C. Bartolini, A. Guarnieri, A. Piccioni (Bologna University) S. Bernabei (Bologna Observatory) S. Covino (Brera Observatory) and G. L. Israel (Roma Observatory) report: "A preliminary analysis of one 20 min. R image of the field of GRB 000630 (GCN 736) obtained on june 30.89 UT with a seeing of 1".8 reveals a possible candidate at RA = 14 47 25.3, DE = +41 12 28 (error 2") not present in the DSS2. A comparison with respect to the USNO 1275-08523886, 1275-08523650 and 1275-08523956 stars gives R= 20.5+-0.2 and a limiting magnitude R = 21. Further observations are needed to confirm the proposed identification."