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.
Typed specifications57 values
Discloses 9 of 12 fields engineers filter by in this category (category median 5).
- Mass
- 1 000 g datasheet p.2
- Position accuracy
- 5 m typical, under defined 680 km polar orbit, Earth pointing con… · datasheet p.2 5 m
- Envelope (L×W×H)
- 160 x 180 x 50 datasheet p.2
- Time to first fix, cold start
- 120 s NVRAM · datasheet p.2 120 s TTFF (NVRAM)
- Tracking channels
- 24 datasheet p.2 24 FPGA co-processor reconfigurable in orbit with up to 100 extr…
- Constellations
- GPS L1 C/A Code, GLONASS G1 (option), Galileo E1 (option), GPS L2C (Option) datasheet p.2 GPS GPS L1 C/A Code | GLONASS option | GLONASS | Galileo option +1
- Supply voltage
- 28 V nom. · datasheet p.2 28 V nom. · 28 V power bus
- Power consumption
- 4 W baseline mode · datasheet p.2 4 W printed as "Power at 5V: 4 W in baseline mode"
- Data interface
- RS-485 datasheet p.2 CAN CAN-SU, TM/TC interface | RS-485 PPS outputs | LVDS PPS outputs (Option TTL) | SpaceWire SpaceWire support +7
- Operating temperature
- -20–50 °C datasheet p.2 -20–50 °C operating
- Radiation tolerance (TID)
- 10 krad core components tested to 10 krads · datasheet p.2 5 krad core components tested to 10krads | 5 krad min · >= 5 kRad (Si)
- Operating regime
- LEO delivers position, velocity and time to Low Earth orbit satel… · datasheet p.1
- Signals and bands
- E1 Galileo (option) · datasheet p.2 E1 Galileo E1 (option) | E1 Galileo E1, option | G1 GLONASS (option) | G1 GLONASS G1 (option) +5
- Velocity accuracy
- 0.1 m/s typical velocity 10 cm/s, under defined 680 km polar orbit, E… · datasheet p.2 0.1 m/s
- Survival temperature
- -30–80 °C datasheet p.2 -30–80 °C non-operating
- Flight heritage
- In orbit on 4 satellites, first launch 2018 datasheet p.2 Derived from SGR-ReSI, in orbit since 2014
- Missions flown
- 4 in orbit on 4 satellites, first launch 2018 · datasheet p.2
- PPS output
- yes PPS outputs RS485, LVDS (option TTL) · datasheet p.2
- Antenna included
- no datasheet p.2
- Timing accuracy (PPS)
- 100 ns Time (UTC), under defined 680 km polar orbit · datasheet p.2
- Antenna inputs
- 4 1 to 4 active antennas, redundancy and extra visible mode · datasheet p.2
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier14 lines, in the manufacturer's own wording
- 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.