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Here are details about a : Space commemorative cover or Space Cover.
Kosmodrom / Ort : USA
Stempeldatum: 16 Mai 1968 Ereignisart : Start Startrampe / Ort : USA Vandenberg SFB (CA) Bemannte / Robotische Mission : Robotisch Missionsziel/-typ : Experimentell / Wissenschaft
SCIENCE
ou?/where?: au sol - ground
autographe?: non - none
Beschreibung : Vandenberg post stamp and ESRO II satellite.
The main objective of ESRO 2 was to conduct a study of solar astronomy and cosmic rays. The ESRO 2 experiments had their counterparts in the NASA-OSO series. The purpose of the spacecraft was to provide continuity to the solar radiation observations carried out by OSO D launched October 18, 1967. The particle experiments were designed to continue similar measurements carried out by the Ariel 1 (UK 1) satellite.