Space & Earth Science
NORAD ID: 5
Int'l Code: 1958-002B
Perigee: 652.7 km
Apogee: 3,833.9 km
Inclination: 34.3 °
Period: 132.8 minutes
Semi major axis: 8621 km
Launch date: March 17, 1958
Source: United States (US)
Comments: Vanguard 1 was a small earth-orbiting satellite designed to test the launch capabilities of a three-stage launch vehicle and the effects of the environment on a satellite and its systems in Earth orbit. It also was used to obtain geodetic measurements through orbit analysis.
Two Line Element Set (TLE):
1 00005U 58002B 15060.07303935 .00000501 00000-0 62376-3 0 9995
2 00005 034.2585 069.3277 1844943 284.5708 055.8151 10.84513249995178
Source: AFSPC
NASA's NSSDC Master Catalog entry for VANGUARD 1
