TITLE: GCN GRB OBSERVATION REPORT NUMBER: 43 SUBJECT: GRB980329 optical observations DATE: 98/04/03 11:00:40 GMT FROM: Sylvio Klose at TLS Tautenburg Sylvio Klose, Thueringer Landessternwarte Tautenburg, Germany, reports: I-Band images obtained on March on March 29.8-30.0 UT, using the Tautenburg Schmidt telescope equipped with the Schmidt focus CCD camera show an object at the position of the radio source reported by Taylor et al. [GCN Circ #40]. This object was not visible on the I-band images taken on March 31.8-31.9 UT with the Tautenburg telescope (GCN #36). It was also not found on an I-band image taken on April 1.85 UT by H. Lehmann and H. Meusinger, Thueringer Landessternwarte, with the Calar Alto 2.2-m telescope equipped with CAFOS. Since no R-band counterpart was seen on the Tautenburg images taken on March 29.8-30.0 UT, I hesitate to claim the detection of this source. This object is visible on various I-band frames, and also appears if flat-fielding is not performed. Its magnitude is about I=20, but I do not have a photometric standard. These Tautenburg I-band Images are availabe via anonymous ftp from ftp.tls-tautenburg.de in the directory /pub/klose. Comments are welcome.