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

Cosmodrome / Location : USA
Date of Cancellation: Jun 2, 1979 Event Type : Launch Launch Pad / Location : USA Wallops Island (VA) Manned / Robotic Mission : Robotic Mission Objective/Type : Experimental / Science
ou?/where?: au sol - ground
autographe?: non - noneDescription : The sixth and last satellite in the Ariel series. This satellite was launched on 2 June 1979, into a near-circular 625-km, 55-deg inclination orbit. The objective of this mission was to undertake studies in high-energy astrophysics. Two X-ray experiments, one cosmic-ray experiment, and three technology experiments were carried. The spacecraft was spin stabilized, with the spin axis commanded into a sequence of orientations to accommodate the X-ray experiment requirements.
Wallops Island post stamp and Ariel 6 satellite. Keyword(s) : #Flags, #Rocket, #Satellite, #Telecommunications, This is OUTSIDE of a Space Revue. Last modified: 05/18/2015 @ 10h13
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USA 1278 | 10,- |
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Space Event : ARIEL 6 (UK 6) (SATELLITE) · SCOUT D1
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