SGR-Axio Space GNSS Receiver
SSTL (Surrey Satellite Technology)
Space GNSS receiver for small to larger satellites, successor to SGR-10, with multi-GNSS and dual-frequency options.
Technical specifications
- Dimensions
- 160 x 180 x 50 mm
- Power at 5V
- 4 W in baseline mode
- Mass
- 1 kg
- Radiation
- >=5 kRad (Si), core components tested to 10 krad
- Operating temperature
- -20 to +50 degC
- Non-operating temperature
- -30 to +80 degC
- Number of channels
- 24
- Number of antennas
- 1-4
- Frequencies/signals
- GPS L1 C/A Code; GLONASS G1 (option); Galileo E1 (option); GPS L2C (option)
- Typical position accuracy
- 5 m
- Typical velocity accuracy
- 10 cm/s
- TTFF (NVRAM)
- 120 s
- Time accuracy (UTC)
- 100 ns
- TM/TC interfaces
- CAN-SU or RS422 (SpaceWire support)
About
The SGR-Axio is SSTL’s Space GNSS (Global Navigation Satellite System) Receiver suitable for many smaller and larger satellites, delivering position, velocity and time to Low Earth orbit satellites. It replaces the heritage SGR-10, supporting dual antennas and 24 GPS C/A code channels, with options for GLONASS and Galileo positioning and dual-frequency L1/L2C GPS, supporting from 1 to 4 dual-frequency antennas. It uses advanced COTS components with radiation mitigation for the space environment, and retains flexibility for in-orbit reconfiguration of FPGA-based channels and signal processing. It has flight heritage in orbit on 4 satellites since first launch in 2018, and is derived from the SGR-ReSI, in orbit since 2014.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.
