Designation
|
Spacetrack catalog number
|
5
|
|
COSPAR ID
|
1958-002-B
|
|
Name in Spacetrack catalog
|
VANGUARD 1
|
Satellite Details
|
Orbit
|
651 x 3,820 km, 34.2°
|
| Category | Scientific |
| Country/organisation of origin | United States |
| Mass | 1 kg |
| Intrinsic brightness (Magnitude) | 10.2 (at 1000km distance, 50% illuminated) | | Maximum brightness (Magnitude) | 8.3 (at perigee, 100% illuminated) |
Launch
|
Date
(UTC)
|
17 March 1958 12:15
|
| Launch site | Cape Canaveral Space Force Station,
United States |
| Launch vehicle | Vanguard |
Description
| The oldest man-made object in orbit! |
|
|