Grb Localizations From Batse, Mars Observer, And Ulysses Observations

Between 1992 October 4 and 1993 August 1, 11 GRBs were concurrently observed by CGRO, Mars Observer (MO), and Ulysses. Unfortunately, for all but one of-the events MO was in a low-time-resolution mode. Arrival time analysis was used to compute error boxes whose larger dimensions are typically of the same order as the diameters of the BATSE-only boxes and whose smaller dimensions are in the are minute range. By and large, our arrival-time results are consistent with the BATSE RMS errors stated in the 3B Catalog. That is, the mean uncertainty in the locations of the stronger BATSE events appears to be about 2 degrees.