HEAO American x-ray astronomy satellite. The 3 satellites of the High Energy Astronomical Observatory program surveyed the celestial sphere for X-ray sources and gamma and cosmic ray phenomena. Astronomy, X-Ray, Gamma satellite built by TRW for NASA, USA. Launched 1977. Used HEAO Bus.
Astro Japanese x-ray astronomy satellite. X-ray experiments. Launching organization: ISAS (Institute of Space and Astronautical Science).
Astron Russian x-ray astronomy satellite. Astrophysics satellite based on the Venera 4V-2 bus design. Electrophysical research of galactic and extragalactic sources of ultraviolet ray and X-ray emission. Astronomy, UV satellite, Russia. Launched 1983. Used Venera-Bus.
Exosat European x-ray astronomy satellite. EXOSAT was a space research satellite of the European Space Agency. Astronomy, X-Ray satellite built by MBB (prime) for ESA, Europe. Launched 1983.
Granat Russian x-ray astronomy satellite. Granat was a Lavochkin design with the mission of making gamma ray observations in energy ranges of 3 to 200 keV. Astronomy, X-Ray, Gamma satellite, Russia. Launched 1989. Used Venera-Bus.
ROSAT German x-ray astronomy satellite. West German extreme UV, X-ray telescope; all-sky survey. Astronomy, X-Ray satellite built by Dornier for DARA, NASA, Germany. Launched 1990.
ALEXIS American x-ray astronomy satellite. ALEXIS was a small spacecraft built for the Los Alamos National Laboratory (LANL). Its mission was to provide high resolution maps of low-energy astronomical x-ray sources. Experimental satellite built by AeroAstro for USAF STP (Space Test Program), USA. Launched 1993.
XTE American x-ray astronomy satellite. X-ray Timing Explorer; X-ray astronomy. Astronomy, X-ray satellite for NASA Goddard Space Flight Center, USA. Launched 1995.
SAX Italian x-ray astronomy satellite. Beppo SAX. Satellite per Astronomia a raggi X; X-ray celestial observatory Astronomy, X-Ray satellite built by Alenia Spazio for ASI, Italy. Launched 1996.
ABRIXAS German x-ray astronomy satellite. X-ray astronomy satellite with the mission to carry out an all-sky survey in the 1-10 keV band with 30 arc second resolution. Astronomy, X-Ray satellite built by OHB-System for DLR (DARA), Germany. Launched 1999.
Chandra American x-ray astronomy satellite. Astronomy, X-Ray satellite built by TRW for NASA, USA. Launched 1999.
XMM European x-ray astronomy satellite. ESA's X-ray Multi-Mirror space observatory was the biggest science satellite ever built in Europe. The spacecraft's X-ray optics covered a spectral range of 1-120 nanometers (12keV-0.1keV). Astronomy, X-Ray satellite built by Daimler Chrysler Aerospace Dornier Satellitensysteme for ESA, Europe. Launched 1999.
ASTRO E Japanese x-ray astronomy satellite. ASTRO-E was to be fifth in a series of Japanese astronomy satellites devoted to observations of celestial X-ray sources. Astronomy, X-Ray satellite operated by ISAS, NASA, Japan. Launched 2000 - 2005.
ASCA Japanese x-ray astronomy satellite. Study 2005. The Advanced Satellite for Cosmology and Astrophysics was a high throughput spectroscopic observatory.
