Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

Transit VBN-3

retired

Positioning Navigation TimingsuborbitalLaunched 4/21/1964

Mission & Launch

Launch Mission: Launch 1964-U03
Launch Vehicle: Thor Ablestar
Launch Date: 4/21/1964
Last Contact: 4/21/1964

Orbit & Mass

Orbit Class: suborbital
Altitude: 280 km
Inclination: 90 deg
Dry Mass: 69 kg
Total Mass: 69 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

UN Registration: A/AC.105/INF.070