Iridium 21- Information
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Identification
USSPACECOM Catalog No.:
25778
International Designation Code:
1999-032-B
Satellite Details
Orbit:
775 x 780 km, 86.4°
Country/Org. of Origin:
Irid
Intrinsic brightness (
Mag
):
6.0 (at 1000km distance, 50% illuminated)
Maximum brightness (Mag):
4.9 (at perigee, 100% illuminated)
Launch
Date (UTC):
June 11, 1999
Description
Spare; previously called Iridium 21A
Developed and maintained by
Chris Peat
, Heavens-Above GmbH
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