Designation
|
Spacetrack catalog number
|
12
|
|
COSPAR ID
|
1959-001-B
|
|
Name in Spacetrack catalog
|
VANGUARD R/B
|
Satellite Details
|
Orbit
|
553 x 3,288 km, 32.9°
|
| Category | Rocket body |
| Country/organisation of origin | United States |
| Intrinsic brightness (Magnitude) | 7.2 (at 1000km distance, 50% illuminated) | | Maximum brightness (Magnitude) | 4.6 (at perigee, 100% illuminated) |
Launch
|
Date
(UTC)
|
17 February 1959 15:55
|
| Launch site | Cape Canaveral Space Force Station,
United States |
| Launch vehicle | Vanguard |
|
|