VANGUARD 1

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VANGUARD 1 is classified as:

• Space & Earth Science

NORAD ID: 5
Int'l Code: 1958-002B
Perigee: 656.7 km
Apogee: 3,829.1 km
Inclination: 34.2 °
Period: 132.6 minutes
Semi major axis: 8613 km
RCS: 0.118 m² (medium)
Launch date: March 17, 1958
Source: United States (US)
Launch site: AIR FORCE EASTERN TEST RANGE (AFETR)

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.

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1 00005U 58002B   25195.53896307 -.00000074  00000-0 -66742-4 0  9995
2 00005  34.2451 276.4669 1841431  56.1197 320.1204 10.85925280406571

Source of the keplerian elements: Caltech