Here are details about a : Space commemorative cover or Space Cover.
Cosmódromo / Lugar : Baikonur
Fecha de matasellos: 21 Déc. 1994 Tipo de Evento : Lanzamiento Plataforma / Lugar : Rusia Plesetsk Misión Tripulada / Robótica : Robótica Objetivo/Tipo de Misión : Militar / Secreto
ou?/where?: au sol - ground
autographe?: non - noneDescripción : The lowest level of the three-tier communications satellite constellation is now populated with two distinct systems devoted to military and government communications. Both systems are assessed to be simple store-dump repeaters which were particularly useful in relaying non-essential traffic between the Russian Federation and overseas stations of forces. The first Strela (which means "Arrow" in Russian) system debuted in 1970 and consisted of 750 - 1000 kg satellites deployed at mean altitudes of 800 km in three orbital planes inclined 74 degrees to the equator and spaced 120 degrees apart. Palabra(s) clave : #Satélite, #Telecomunicaciones, REVISTA DEL ESPACIO : 09 - 2009 Última modificación: 09/10/2016 @ 23h44
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