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Here are details about a : Space commemorative cover or Space Cover.
Cosmodromo / Luogo : Woomera
Data di annullo: 28 Oct. 1971 Tipo di Evento : Lancio Rampa di Lancio / Luogo : Australia Woomera Missione con Equipaggio / Robotica : Robotica Obiettivo/Tipo Missione : Sperimentale / Scienza
SCIENCE
ou?/where?: au sol - ground
autographe?: non - none
Descrizione : Prospero (or X-3) was a British scientific satellite launched from the Woomera site in Australia aboard a Black Arrow rocket.
It was used to conduct experiments to test the technologies necessary for communication satellites, such as solar cells, telemetry and power systems and carried a micrometeoroid detector to conduct a scientific experiment to measure the incidence of micrometeoroids.