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HEAO
subjectfact 
HEAOhas definition High-Energy Astronomical Observatory.has source: Lena, P., Lebrun, F., Mignard, F. 1996 Observational Astrophysics, Springer, 2001-09-27 09:27:42.0
is an instance of X-ray space telescope2001-09-27 09:27:42.0
X-ray space telescopehas wavelength sensitivity in gamma ray and X-rays2001-09-27 09:27:42.0
artificial satellitehas attitude control2001-09-27 09:27:29.0
has ground communication station2001-09-27 09:27:29.0
can have orbit decay date2001-09-27 09:27:29.0
has launch vehicle2001-09-27 09:27:29.0
has launch location2001-09-27 09:27:29.0
has launch date2001-09-27 09:27:29.0
telescopehas angular resolving power2001-09-27 09:27:40.0
has effective diameter2001-09-27 09:27:40.0
has aperture2001-09-27 09:27:40.0
has focal ratio2001-09-27 09:27:40.0
has operator2001-09-27 09:27:40.0
has purpose observe celestial objects2001-09-27 09:27:40.0
has location2001-09-27 09:27:40.0
instrumenthas operator2001-09-27 09:27:28.0
satelliteorbits a more massive physical object2001-09-27 09:27:27.0
has approximately elliptical orbit2001-09-27 09:27:27.0
has orbital period2001-09-27 09:27:27.0
has orbital inclinationhas URL: http://dir.yahoo.com/Science/Space/Satellites/, has URL: http://www.bester.com/satpasses.html, has URL: http://www.tbs-satellite.com/tse/online, 2001-09-27 09:27:27.0
physical objecthas angular momentum2001-09-27 09:27:27.0
has mass2001-09-27 09:27:27.0
has velocity2001-09-27 09:27:27.0
has momentum2001-09-27 09:27:27.0
has temperature2001-09-27 09:27:27.0
has volume2001-09-27 09:27:27.0
has extent2001-09-27 09:27:27.0
has material2001-09-27 09:27:27.0
artifacthas creator2001-09-27 09:27:27.0
has creation date2001-09-27 09:27:27.0
has owner2001-09-27 09:27:27.0

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