Tags: Artificialsatellite, Satellite.
Vanguard 2 or Vanguard II is an earth-orbiting satellite launched February 17 1959 aboard a Vanguard SLV 4 rocket as part of the United States Navy’s Project Vanguard. The satellite was designed to measure cloud-cover distribution over the daylight portion of its orbit for a period of 19 days and to provide information on the density of the atmosphere for the lifetime of its orbit (~300 years).As of April 4 2012 Vanguard 2 was still in orbit.
