Here are details about a :
Space commemorative cover
or Space Cover.
Cosmodrome / Location : Baikonur
Date of Cancellation: Nov. 30, 1968
Event Type : Launch
Launch Pad / Location : Russia Plesetsk
Manned / Robotic Mission : Robotic
Mission Objective/Type : Ecology / Earth Observation
ou?/where?: au sol - ground
autographe?: non - noneDescription : The Sfera or Geoid series were the first soviet geodetic satellites to improve the accuracy of maps.
Designed for a 6 month lifetime, most of the satellites lasted much longer. Initially the system suffered from various problems, but in 1973, the Sfera system was declared operational. Sfera satellites were operated until 1980, when this system was replaced with the more advanced Geo-IK (Musson) satellites. Keyword(s) :
#Cartography,
#Planet,
#Satellite, This is OUTSIDE of a Space Revue. Last modified: 04/26/2023 @ 13h22
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Page : future · Ref: ba 173 Space Event : SFERA 1 #3 · KOSMOS 256 · GEODETIC RESEARCH · KOSMOS-3M
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