Science
WESTPAC
US-Australian Technology Demonstrator · US / Australia (Joint Program)
Right now
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WESTPAC, a joint US-Australian small satellite launched in 1998 to test miniaturized Earth observation and communications technologies for defense and civilian applications in the Asia-Pacific region — part of a wave of late-1990s small satellite missions proving that useful space capability didn't require billion-dollar spacecraft.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 509 mi (819–820 km)
- Inclination
- 99.0°
- One orbit
- 101.1 minutes14.2 orbits a day
- NORAD ID
- 25398
- Int’l designator
- 1998-043E
- Launched
- 1998
Orbital elements from CelesTrak, as of 22 Sep 2026.
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