Here are details about a :
Space commemorative cover
or Space Cover.
Kosmodrom / Plats : USA
Stämpeldatum: 15 Déc. 1960
Händelsetyp : Uppskjutning
Startplatta / Plats : USA KSC (FL)
Bemannad / Robotisk Mission : Robotisk
Uppdragsmål/Typ : Telekommunikation
ou?/where?: au sol - ground
autographe?: non - noneBeskrivning : Project Echo was the first passive communications satellite experiment. Each of the two American spacecraft, launched in 1960 and 1964, was a metalized balloon satellite acting as a passive reflector of microwave signals. Communication signals were bounced off them from one point on Earth to another. Nyckelord :
#Planet,
#Raket,
#Satellit,
#Telekommunikation, RYMDREVYN : 02 - 2015 Senast ändrad: 09/06/2015 @ 15h06
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USA 40 | 26,- |
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Sida : future · Ref: USA 40 Rymdhändelse : ECHO 1A (SATELLITE) · THOR DM19
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