GCN Circular 132
P.M. Vreeswijk, T.J. Galama, (U. of Amsterdam); Y. Lipkin, E. Leibowitz (Wise Observatory, Tel Aviv University, Israel); C. Lidman, V. Doublier (ESO, Chile); J. van Paradijs (U. of Amsterdam and U. of Alabama in Huntsville); C. Kouveliotou, C. Robinson (NASA-MSFC/USRA) on behalf of a larger collaboration, report: "We obtained I band images with the ESO NTT and the Wise Observatory 1-m telescope that cover the RXTE error circle of GRB980703 (IAU Circ. 6966, GCN #126). We find the following magnitudes for the optical transient proposed by Frail et al. (GCN #128; see also GCN #130 and GCN #131): UT date I telescope July 4.06 20.1 +/- 0.2 Wise 1-m July 4.37 20.6 +/- 0.2 NTT July 5.05 20.9 +/- 0.3 Wise 1-m July 6.44 21.3 +/- 0.2 NTT No other sources in the entire RXTE error circle are found to be variable by more than 0.4 magnitude between the two NTT epochs down to I=22.6. This message is citeable.