2.2.2 spase://SMWG/Observatory/OV3-3 OV3-3 1966-070A 02389 2014-07-24T20:37:18Z The OV3-3 spacecraft was placed into a polar orbit to measure trapped and precipitating particles and correlated electromagnetic wave fields. The spacecraft was spin stabilized at 8 rpm, and its systems performed well for 14 months, until September 1967 when the onboard tape recorder failed. After that time, low-latitude, real-time tracking continued into 1969 when the spacecraft was deactivated. spase://SMWG/Person/UNKNOWN GeneralContact Earth.Magnetosphere.Main Earth.Magnetosphere.RadiationBelt 1966-08-04T00:00:00Z 1969-12-31T00:00:00Z Exact Stop Date could not be determined.