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Results for your query: docsPerPage=100;f155-subject=Einstein ObservatoryThu, 01 Jan 1970 12:00:00 GMTPre-flight HEAO-2.
http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/heao2_prepflight/heao2_prepflight.dc.xml
Einstein Observatory (HEAO-2) was the first fully imaging X-ray telescope put into space and the second of NASA's three High Energy Astrophysical Observatories. Named HEAO-B before launch, the observatory's name was changed to honor Albert Einstein upon its successfully attaining orbit.http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/heao2_prepflight/heao2_prepflight.dc.xmlThu, 01 Jan 1970 12:00:00 GMTHEAO-2.
http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/8005694/8005694.dc.xml
Renamed the Einstein Observatory after launch, the image on the left shows HEAO-2 during pre-flight testing.http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/8005694/8005694.dc.xmlThu, 01 Jan 1970 12:00:00 GMTHEAO-2.
http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/heao2_diagram/heao2_diagram.dc.xml
Renamed the Einstein Observatory after launch, the image on the left shows HEAO-2 during pre-flight testing. This image shows the placement of the instruments onboard the observatory.http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/heao2_diagram/heao2_diagram.dc.xmlThu, 01 Jan 1970 12:00:00 GMT