TITLE: GCN CIRCULAR NUMBER: 2244 SUBJECT: GRB 030329/SN 2003dh: Possible increase in brightness DATE: 03/05/25 03:35:52 GMT FROM: Krzysztof Z. Stanek at CfA K. Z. Stanek, D. W. Latham (Harvard-Smithsonian CfA) and M. E. Everett (Planetary Sciences Institute) report: We imaged the SN 2003dh (Matheson et al. GCN 2107, 2120; Garnavich et al. IAUC 8108, 8114; Stanek et al. astro-ph/0304173) associated with the GRB 030329 with the FLWO 1.2-m telescope between May 20 UT 05:45 and May 23 UT 04:30 (51.75 and 54.7 days after the burst) using standard R filter. The transient seems to brighten during that time: UT R dR Filter Texp ---------------------------------------------------- 2003-05-20 05:45 21.575 0.07 R 4x900 sec 2003-05-21 05:00 21.689 0.11 R 4x900 sec 2003-05-22 05:45 21.429 0.08 R 4x900 sec 2003-05-23 04:30 21.321 0.09 R 5x900 sec Observations using larger telescopes, also in other bands, are strongly encouraged. Any use of these data should include proper reference to this GCN.