THE ESA ULYSSES DATA ARCHIVE

On 30 September 1995, Ulysses completed its prime mission to explore t he high-latitude regions of the heliosphere, becoming the first spacec raft to truly escape from the confines of the ecliptic plane. The spac ecraft's scientific payload has returned unique and continuous data th roughout, cowering the in-ecliptic transfer orbit to Jupiter, the flyb y of the giant planet, the descent to the south pole of the Sun, and t he subsequent ascent over its north pole. With approval from the fundi ng agencies to extend the mission far a second solar orbit, the comple te set of: Ulysses measurements will provide an invaluable source of d ata for space scientists, as well as being of interest to the wider sc ientific community. The ESA archive for Ulysses data provides public a ccess to the measurements made by the spacecraft, together with the do cumentation needed for their correct interpretation. plots of selected parameters have been generated and are available on-line for viewing or downloading. The archive, which takes advantage of the infrastructu re of the Internet made available through the World Wide Web, will bec ome the central repository in Europe for measurements made throughout the mission's lifetime.