Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

GREB (1960 ETA 2)

retired

Signals IntelligenceLEOCOSPAR 1960 ETA 2Launched 6/22/1960

Mission & Launch

Launch Mission: Transit 2A/GRAB
Launch Vehicle: Thor Ablestar
Launch Date: 6/22/1960
Last Contact: 4/18/1961

Orbit & Mass

Orbit Class: LEO
Altitude: 836 km
Inclination: 66.77 deg
Dry Mass: 19 kg
Total Mass: 19 kg

Payload Classification

Mission Type: Signals Intelligence
Payload Category: SIG
Payload Class: D

Organizations

Operator: U.S. Naval Research Lab
Manufacturer: U.S. Naval Research Lab

Registry

COSPAR ID: 1960 ETA 2
UN Registration: A/AC.105/INF.001