Designation
Spacetrack catalog number
|
20
|
COSPAR ID
|
1959-007-A
|
Name in Spacetrack catalog
|
VANGUARD 3
|
Satellite Details
Orbit
|
508 x 3,221 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 site | Cape Canaveral Space Force Station, United States |
Launch vehicle | Vanguard |
|
|