TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1364 SUBJECT: GRB 020409, 2nd epoch optical observations DATE: 02/04/12 20:01:24 GMT FROM: Sylvio Klose at TLS Tautenburg B. Stecklum, A. Zeh, S. Klose (Thueringer Landessternwarte Tautenburg), D. H. Hartmann, M. Leising (Clemson University), A. A. Henden, F. J. Vrba (USNO/USRA, Flagstaff), J. Greiner (AIP Potsdam/MPE Garching) report: The error circle of GRB 020409 (Piro et al., GCN #1347) was imaged for the second time in the I band on April 11/12 with the Tautenburg Schmidt telescope equipped with the prime focus CCD camera (2k x 2k; fov about 35 x 35 arcmin), covering the full BeppoSAX error region. Six images with 10 min exposure time each were obtained. The second epoch observations are deeper than the first epoch observations. We detect no source which varied by more than approximately 0.5 mag within the GRB error circle. Any potential afterglow must have been fainter than about I=(21 +/- 0.5) mag during the first epoch observations (Stecklum et al., GCN #1353), which began on April 10, 21:44 UT. This message can be quoted.