TITLE: GCN GRB OBSERVATION REPORT NUMBER: 903 SUBJECT: GRB 001212 Optical Observation DATE: 00/12/15 10:57:23 GMT FROM: Jin Zhu at BAO GRB 001212 Optical Observation J. Zhu and J. Ma, on behalf of BAO GRB team, report: "We have imaged a 58'*58' field including the complete error box for GRB 001212 (Hurley et al., GCN 899) with the 0.6/0.9-m Schmidt telescope of Beijing Astronomical Observatory, Chinese Academy of Sciences. 8 frames (300-s exposure time each) were obtained between Dec. 14.61 to 14.64 (48 hours after the GRB) with the BATC i-filter (6660 +/- 240 A), under thin clouds with a nearby bright moon. The images were not in good quality because of the unstable weather, and photometry at the position of the possible OA suggested by Mohan et al. (GCN 900) performed on the combination image of our two images (which in relative good quality) results a detection of a possible source at RA=06:49:38.19, Dec=+36:22:53.8 (J2000.0) for the epoch of Dec. 14.631. Assuming R=14.6 for a star at RA=06:49:30.03, Dec=+36:24:35.5 (J2000.0) gives R=17.4 (+/-1.0) for our detection, which is almost at the detecting limitation of the image. Follow-up observation is going to be made at around Dec. 15.6 under same system configurations." This message may be cited. -- ======================================================================== Jin Zhu | Tel.: +86-10-62751286 (O) Beijing Astronomical Observatory | +86-314-5054767 (Schmidt dome) Chinese Academy of Sciences | Pager: +86-10-96301682333 P. R. China | Fax : +86-10-62765031 ------------------------------------------------------------------------ Room 2919, No. 2 Science Building, CAS-PKU Beijing Astrophysics Center, Peking University, Beijing 100871, P. R. CHINA. ------------------------------------------------------------------------ email: zj@bac.pku.edu.cn http://vega.bac.pku.edu.cn/~zj ========================================================================