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Vanguard 3 - Satellite Information

Designation
Spacetrack catalog number 20
COSPAR ID 1959-007-A
Name in Spacetrack catalog VANGUARD 3

Satellite Details

Orbit 508 x 3,278 km, 33.3°
Category unknown
Country/organisation of origin United States
Intrinsic brightness (Magnitude) 7.7 (at 1000km distance, 50% illuminated)
Maximum brightness (Magnitude)4.8 (at perigee, 100% illuminated)

Launch

Date (UTC) 18 September 1959 05:20
Launch siteCape Canaveral Air Force Station,
United States
Launch vehicle Vanguard
View from orbit pole
 

DLR