Wikidata facts
- Instance of
- artificial satellite of the Earth
- Parent body
- Earth
- Mass
- 10.2
- Orbital period
- 125.6
- Manufacturer
- United States Naval Research Laboratory
- Image
- Vanguard2.jpg
- Significant event
- rocket launch
Show 9 more facts
- Commons category
- Vanguard II
- UTC date of spacecraft launch
- 1959-02-17
- space launch vehicle
- Vanguard
- start point
- Cape Canaveral Launch Complex 18
- semi-major axis of an orbit
- 8317.7
- orbital eccentricity
- 0.166
- orbital inclination
- 32.88
- apoapsis
- 3320.6
- periapsis
- 559
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