The Rossi X-ray Timing Explorer by NASA

Official mission record: heasarc.gsfc.nasa.gov/docs/heasarc/missions/rxte.html . Mission-team history: heasarc.gsfc.nasa.gov/docs/xte/xte_1st.html . Cited passages: 30December1995 launch, January2012 end of operations and fast X-ray timing of compact sources. The dates and science goals were verified in indexed official mission material; one subsequent direct fetch returned a gateway error.