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GPS BIIRM-8 (PRN 05)
GPS Navigation Satellite (Block IIR-M, Final of Generation) · US Space Force
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GPS BIIRM-8 (PRN 05), launched in 2009, was the last satellite of the Block IIR-M generation, closing out an eight-satellite modernization program that brought jam-resistant military signals and improved civilian dual-frequency capability to the operational GPS constellation over roughly four years — the bridge generation between GPS's original 1990s design and the fully redesigned satellites that followed. GPS then transitioned to the Block IIF generation, which added the L5 aviation safety signal — meaning the jump from this satellite's Block IIR-M design to its immediate successors represented one of the larger single-generation capability leaps in GPS history.
Its orbit
- Orbit
- Medium Earth Orbita high vantage point, ideal for navigation
- Altitude
- 12,460–12,629 mi (20,052–20,324 km)
- Inclination
- 56.3°
- One orbit
- 12.0 hours2.0 orbits a day
- NORAD ID
- 35752
- Int’l designator
- 2009-043A
- Launched
- 2009
Orbital elements from CelesTrak, as of 22 Sep 2026.
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