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Currently,
there are 936 operating satellites in space with a replacement cost of
$200 billion. The telecommunications industry relies on them to generate
$250 billion in profits each year. Virtually
every class of operating satellite has demonstrated a vulnerability to
space weather storms. Most are minor, but many involve consequences leading
to satellite damage or failure. The orbit of the International Space Station
(ISS) is very sensitive to the level of solar storms which cause excess
atmospheric drag.
During
sunspot maximum conditions, the ISS loses 146 kilometers of altitude each
year. It would burn up in the atmosphere if it were not 're-boosted' every
few months.
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