Objectives and Applications
WESTPAC, formerly known as WPLTN (Western Pacific Laser Tracking Network) satellite, is a commercial Australian communications and geodetic research satellite owned by Electro Optic Systems Pty Limited (EOS), Queanbeyan, NSW (New South Wales), Australia. WESTPAC is a passive satellite, the objective is to enhance the contribution of satellite laser ranging (SLR), in particular to space geodesy in the Western Pacific, to serve in the development of free space optical communications, and also to s
Full Name
Western Pacific Satellite
Mission Status
Operational (nominal)
Mission Agencies
Electro Optic Systems Pty Limited
Launch Date
10 Jul 1998
Mission Links
EOL Date
Jul 2028
Orbit Type
Sun-synchronous
Orbit Period
101 minutes
Orbit Sense
Orbit Inclination
98.86 deg
Orbit Altitude
835 km
Orbit Longitude
NORAD Catalog #
International Designator