TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3668 SUBJECT: GRB 050724 : Lulin early R-band monitoring observations DATE: 05/07/24 16:48:46 GMT FROM: Yuji Urata at RIKEN I.C. Yen (NTNU), H.C. Lin, K.Y. Huang, W.H. Ip (NCU), Y. Urata (RIKEN), Y. Qiu (BAO), Y.Q. Lou (THCA) on behalf of EAFON report: " We started to image the GRB 050724 error region (Covino et al GCN 3665) at 14.26 UT (~1.69 hours after the burst) using 1.0-m telescope at Lulin Observatory, Taiwan. The source reported by Antonelli et al. (GCN 3666) was detected in a series of R-band 300 sec exposure. Our preliminary analysis shows the brightness of the source do not have significant variability during our monitoring observations (1.69-3.59 hours after the burst). This message may be cited."