 {|class="infobox bordered" |+specifications |- !excentricity |convert|0.0 |- !orbital inclination |28.5Â° |- !apoapsis | |- !periapsis | |- !power |800.0 watts |- |} thumb|xte launches the rossi x-ray timing explorer (rxte) is a satellite that observed the time structure of astronomical x-ray sources, named after bruno rossi. the rxte has three instrumentsâthe proportional counter array, the high-energy x-ray timing experiment (hexte), and the all sky monitor. the rxte observed x-rays from black holes, neutron stars, x-ray pulsars and x-ray bursts. it was funded as part of the explorer program, and is sometimes also called explorer 69. rxte was launched from cape canaveral on 30 december 1995 on a delta rocket, has an international designator of 1995-074a and a mass of 3200&nbsp;kg. observations from the rossi x-ray timing explorer have been used as evidence for the existence of the frame-dragging effect predicted by the theory of general relativity. rxte results have, as of late 2007, been used in more than 1400 scientific papers. in january 2006, it was announced that rossi had been used to locate a candidate intermediate-mass black hole named m82 x-1.{{cite web|url=http://www.scienceblog.com/cms/dying_star_
Derelict_satellites_orbiting_Earth Explorers_program_(NASA) Space_observatories Spacecraft_launched_in_1995 X-ray_telescopes