Here are details about a :
Space commemorative cover
or Space Cover.
Kosmodrom / Plats : USA
Stämpeldatum: 3 Mar. 1959
Händelsetyp : Uppskjutning
Startplatta / Plats : USA KSC (FL)
Bemannad / Robotisk Mission : Robotisk
Uppdragsmål/Typ : Experimentell / Vetenskap
ou?/where?: au sol - ground
autographe?: non - noneBeskrivning : After a successful launch Pioneer 4 achieved its primary objective (an Earth-Moon trajectory), returned radiation data and provided a valuable tracking exercise. The probe passed within 60,000 km of the Moon`s surface on 4 March 1959 at 22:25 UT (5:25 p.m. EST) at a speed of 7,230 km/h. The distance was not close enough to trigger the photoelectric sensor. The probe continued transmitting radiation data for 82.5 hours, to a distance of 658,000 km, and reached perihelion on 18 March 1959 at 01:00 UT. Nyckelord :
#Antenn,
#Raket, Är UTANFÖR Rymdrevyerna. Senast ändrad: 09/06/2015 @ 10h03
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Sida : future · Ref: USA 9 Rymdhändelse : PIONEER 4 (MOON PROBE) · JUNO 2
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