The Ulysses supplement to the BATSE 4Br catalog of cosmic gamma-ray bursts

We present Interplanetary Network localization information for 147 gamma-ra y bursts observed by the Burst and Transient Source Experiment between the end of the Third BATSE catalog and the end of the Fourth BATSE catalog, obt ained by analyzing the arrival times of these bursts at the Ulysses and Com pton Gamma-Ray Observatory (CGRO) spacecraft. For any given burst observed by these two spacecraft, arrival time analysis (or "triangulation") results in an annulus of possible arrival directions whose half-width varies betwe en 7" and 2 degrees.3, depending on the intensity and time history of the b urst, and the distance of the Ulysses spacecraft from Earth. This annulus g enerally intersects the BATSE error circle, which results in an average red uction of the error box area of a factor of 25.