PNT Receiver
Integrated Navigation Subsystem
Designed for DoD/Civil smallsat LEO constellations with low-cost, low-SWAP and 3-5 years mission life.
- Next Generation of our Legacy Space-Qualified Monarch and Sentinel® GPS Receivers
- 1,000+ Equivalent Years of Accumulated DoD Space Heritage and more than 6M Orbits
Single Channel GNSS Receiver Subsystem Supporting Civil GPS and Galileo Signals
Optional Second Independent RF Channel for Situational Awareness Monitoring
Includes aPNT Software Fully Integrated into the Receiver
Includes Chip Scale Atomic Clock (CSAC) with Integrated Clock Ensemble
RS422 and Ethernet I/O Interface and Control
Key Features & Benefits
- Compatible with LEO orbit regimes up to 1200 km
- Radiation tolerant to 20 krad(Si)
- Tri-Frequency GNSS covers L1, L2 and L5
- Fast Acquisition Processor enables rapid cold start capability
- Fully integrated aPNT software for enhanced performance using TWTT data from optical and communications crosslinks to ground terminals
- Low-Cost high-stability clock ensemble for extended hold-over time keeping
- Reduced integration burden into existing SV platforms
Performance Characteristics
- Supporting GPS and Galileo Civil Codes on L1, L2 and L5
- GNSS Codes: GPS L1 C/A, L1C, L2C, L5 and Galileo E1, E5
- Narrow Bandwidth Acceleration-Aided Carrier/Code Tracking
- Tracking and Navigation Algorithms based on Monarch-M and Sentinel GPS Receivers
- Sensor fusion of GNSS and aPNT measurements provides superior resiliency and performance
- Proprietary GNSS aPNT TWTT and orbit propagation algorithms
Specifications
PNT Receiver Datasheet |
View Document |
LEO Solution Accuracy |
|
| Autonomous Position | < 1 meter (1σ) |
| Autonomous Velocity | < 0.5 cm/sec (1σ) |
| Clock and Precise 1PPS Absolute | < 4 ns (1σ) |
| Position Error after 40 min outage | < 5 meter (1σ) |
| Holdover time estimate |
< 3 ns after 100 sec < 100 ns after 1 hour |
Cold Start Time to First Fix |
|
| LEO | < 4 minutes |
aPNT Solution Accuracy (GNSS Denied) |
|
| aPNT Position | < 9 meter (1σ) |
| aPNT Velocity | < 2 cm/sec (1σ) |
| aPNT Timing | < 5 ns (1σ) |
Physical & Environmental |
|
| Design Margin | 1.42x Radiation Design Margin TID |
| Tolerance | Tolerant to 20 krad(Si) |
| Mission Life | 3-5 years |
| Vibration | 16.08 Grms |
| Pyro Shock | 1500 G |
| Temperature | -15 to +45 C |
| Size | 6.2 in x 7.1 in x 2.9 in |
| Weight | < 3 kg |
| Power |
DC Power (typical at 25 C with 28 V Prime Power) Single Channel GNSS: < 33 W |
Orbital Dynamics |
|
| Orbital Altitude | LEO (200 km – 1,200 km) |
| Orbital Velocity | up to 11,000 meters/second |
Other |
|
| Clock Ensemble | Integrated clock ensemble of EMXO and CSAC Clock steering performed by integrated aPNT software Supports alternate Ground Control clock steering commands with configurable priority |
| Input/Output | RS422 and Ethernet Command/Data interfaces One Pulse per Second (GPS, UTC, or Measurement Epoch Time) |
