Delta II: Rossi X-ray Timing Explorer
The XTE (X-Ray Timing Explorer), renamed on orbit RXTE (Rossi X-Ray Timing Explorer) mission has the primary objective to study the temporal and broad-band spectral phenomena associated with stellar and galactic systems containing compact objects in the energy range 2--200 keV and in time scales from microseconds to years.

Mission Data

The launch vehicle successfully inserted its payload(s) into the target orbit(s).
About Delta II 7920-10
Delta II is an American space launch system developed by McDonnell Douglas, now part of the Delta rocket family operated by United Launch Alliance. With more than 150 missions and a nearly perfect track record, Delta II has established itself as one of the most successful orbital launch systems.
Launch Site
Launch data from Launch Library 2 by The Space Devs.