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Here are details about a :
Space commemorative cover
or Space Cover.

the flag of USA
Cosmodrom : USA

Date of Cancellation: Aug. 12, 1977
Kind of Event : Launch
Launch pad : USA KSC (FL)
habité?/manned?: robot
Mission type : Experimental & Science

ou?/where?: au sol - ground
autographe?: non - none

Description : Kennedy Space Center post stamp and HEAO telescope.
High-Energy Astronomy Observatory 1 (HEAO 1) was the first in a series of three satellite observatories designed to continue the X-ray and gamma-ray studies initiated by ANS, OAO 3, UK 5, the OSO series, the SAS series, and the gamma-ray burst discoveries of the Vela satellites. This mission was specifically designed to map and survey the celestial sphere for X-ray and gamma-ray sources in the energy range of 150 eV to 10 MeV, to establish the size and precise location of X-ray sources to determine the contribution of discrete sources to the X-ray background, and to measure time variations of X-ray sources.

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This will be featured in a future Space Revue.

Last modified: 05/04/2015 @ 23h14

ask if availablepurchase this item USA 1063  8,-  
ask if availablepurchase this item USA 1252   6,-  

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enveloppe USA 1063 - cover USA 1063
USA 1063

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