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Transit IV-A

retired

Positioning Navigation TimingLEOCOSPAR 1961 OMI 1Launched 6/29/1961

Mission & Launch

Launch Mission: Transit 4A/GRAB
Launch Vehicle: Thor Ablestar
Launch Date: 6/29/1961
Last Contact: 7/1/1962

Orbit & Mass

Orbit Class: LEO
Altitude: 938.5 km
Inclination: 66.81 deg
Dry Mass: 78 kg
Total Mass: 78 kg

Payload Classification

Mission Type: Positioning Navigation Timing
Payload Category: NAV
Payload Class: D

Organizations

Operator: U.S. Navy
Manufacturer: Johns Hopkins Applied Physics Lab

Constellation

Name: Transit navigation system
Active Satellites: 0

Registry

COSPAR ID: 1961 OMI 1
UN Registration: A/AC.105/INF.001