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

Kosmodrom / Ort : USA

Stempeldatum: 11 Juin 1973
Ereignisart : Start
Startrampe / Ort : USA KSC (FL)
Bemannte / Robotische Mission : Robotisch
Missionsziel/-typ : Experimentell / Wissenschaft

SCIENCE

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

Beschreibung : This RAE-B (Radio Astronomy Explorer B) mission was the second of a pair of Radio Astronomy Explorer satellites. It was placed into lunar orbit on 15 June 1973, to provide radio astronomical measurements of the planets, the sun, and the galaxy over the frequency range of 25 kHz to 13.1 MHz.
Two tape recorders provided backup storage. A VHF transmitter served primarily for range and range-rate measurements and as a backup. Commands were received on a VHF (148 MHz) receiver, which also was a part of the range and range-rate system.
Kennedy Space Center post stamp and Explorer 49 satellite.

Schlüsselwort/-wörter :
#Planet,
#Satellit,
#Telekommunikation,

Ist AUSSERHALB der Weltraum-Revuen.

Letzte Änderung: 01/04/2015 @ 09h28