Space & Earth Science
NORAD ID: 5
Int'l Code: 1958-002B
Perigee: 656.6 km
Apogee: 3,845.5 km
Inclination: 34.2 °
Period: 132.8 minutes
Semi major axis: 8622 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 14200.70102250 -.00000104 00000-0 -12159-3 0 2423
2 00005 034.2486 039.9565 1849244 355.5651 003.0393 10.84388147970809
Source: AFSPC
NASA's NSSDC Master Catalog entry for VANGUARD 1
