Goddard Projects Directory

The search for V produced 2 results out of 249 records Vanguard II Launch Date: 02/17/1959 1st cloud-cover satellite. Other Name(s):  Vanguard 2, Vanguard SLV 4 |  NSSDC Link  |   Vanguard III Launch Date: 09/18/1959 Surveyed earth magnetic field, and lower edge of Van Allen belt. Transmission stopped 84 days after launch Other Name(s):  Vanguard 3, Vanguard TV 4 Backup |  NSSDC Link  |  Additional URL 1  |  Additional URL 2  |