TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4036 SUBJECT: GRB 050925 : I-band observation at Xinglong observatory DATE: 05/09/25 15:16:35 GMT FROM: Yuji Urata at RIKEN Y. Qiu, C.L. Lu (BAO), Y.Q. Lou (THCA), Y. Urata (RIKEN), K.Y. Huang (NCU) on behalf of EAFON report " We have imaged the entire error region of GRB 050925 (Holland et al. GCN 4034) using 0.8-m telescope at XingLong Observatory, China. The I-band observations were performed form 11.27 UT to 11.78 UT (~ 2.19 to 2.70 hours after the burst). Compare with DSS-II images, no new source was found in our co-add image (300s x 6). The limiting magnitude is I~ 20.6, in comparison with USNO-B1.0 stars(S/N=3). The extinction in I is about 4.1 mag (Schlegel et al. 1998). This message may be cited."