X-ray astronomy satellite with the mission to carry out an all-sky survey in the 1-10 keV band with 30 arcsecond resolution. MPE/Garching and the Astrophysical Institute in Potsdam developed the scientific payload, a set of seven hard X-ray imaging telescopes with an X-ray CCD detector. The mission complemented MPE's existing all sky survey in the 0.1-2 keV soft band made by the ROSAT satellite.

Total Mass: 470 kg.

X-ray astronomy satellite with the mission to carry out an all-sky survey in the 1-10 keV band. The satellite's battery failed and contact was lost on May 1.

• 4 - McDowell, Jonathan, Jonathan's Space Report (Internet Newsletter), Harvard University, Weekly, 1989 to Present. HTML when accessed: ftp://sao-ftp.harvard.edu/pub/jcm/space/news