??????? ?????? , ????????? ??????, also known as moons|????????? ?????? |other uses| ??????
[[File:|42px|link=]]
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updated
.
Please help update this ??????? to reflect recent events or newly available information.
(
December 2014
)
|
NASA's
Earth-observing fleet as of June 2012.
|
An animation depicting the orbits of GPS satellites in
medium Earth orbit
.
A full-size model of the
Earth observation satellite
ERS 2
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