The SpacePNT NaviLEO is a high performance GNSS receiver platform delivering high positioning and timing accuracy autonomously and in real-time onboard LEO satellites. NaviLEO's high performance autonomous on-board proprietary real-time precise orbit determination (POD) algorithm provides sub-decimeter (3D rms) positioning and timing in real-time onboard LEO satellites.


  • Remote sensing
  • Earth observation
  • In-orbit servicing
  • Space debris removal
  • Provision of secured localization services from LEO (for GNSS backup or provision of alternate PNT services) or from cislunar orbits (for Moon PNT services)
  • Autonomous navigation and timing for Moon missions

Key features

  • Implements radiation tolerant HW/SW/FW architecture including latch-up protections and ECC
  • Supports both passive and active antennas
  • In-flight FW/SW upgradability
  • One unique platform solution for launchers, LEO, GEO, HEO, and Moon missions
  • Onboard orbital propagator for improved performance and availability
  • Supports multiple GNSS (GPS, GALILEO) over multiple frequencie
  • Supports cold redundancy (with 2 units)

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Last updated: 2022-02-07




1300 g (excluding antenna)
234 mm
121 mm
66.3 mm
power consumption
< 8 W
5 V DC
update rate
1 Hz
operating temperature
-20 to 55 C
7.5 years in LEO (800 km altitude typ.)

1. Including a radiation margin of 2.


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