Constellation On Board Computer (cOBC)
Beyond Gravity (ex-RUAG Space)
Fully redundant on-board computer subsystem built entirely from commercial components, with integrated GNSS receiver and platform/payload interfaces.
Typed specifications61 values
Discloses 11 of 13 fields engineers filter by in this category (category median 5).
- Processor
- e500Core datasheet p.3
- Mass
- 5 400 g datasheet p.3
- CPU clock
- 800 MHz datasheet p.3
- Envelope (L×W×H)
- 300 x 119 x 239 mm (excluding feet) datasheet p.3 300 x 119 x 239 mm³ excluding feet
- RAM
- 1 024 MB datasheet p.3 1 024 MB DDR3 processing memory with ECC
- Mass storage
- 2.7 GB datasheet p.3 2.7 GB non-volatile storage with ECC
- Operating system
- VxWorks datasheet p.2 VxWorks BSP for VxWorks, RTEMS or Linux | RTEMS | RTEMS BSP for VxWorks, RTEMS or Linux | Linux +1
- Power consumption
- 26 W nominal · datasheet p.3 26 W nom. · ~26W nominal
- Data interface
- Ethernet datasheet p.3 Ethernet 2 x 1 Ethernet interfaces | GPIO 2 x 16 GPIO | RS-485 2 x 18 RS422/RS485 UART interfaces | RS-422 2 x 2 TM Encoder RS422, 2 x 2 TC Decoder RS422 +18
- Operating temperature
- -20–60 °C datasheet p.3
- Radiation tolerance (TID)
- 30 krad Component Total Ionising Dose · datasheet p.2
- Design lifetime
- 10 years datasheet p.3 10 years LEO, MEO and GEO | 10 years reliability 99% (10 years, 30 degC base plate)
- Processor architecture
- PowerPC Power Architecture e500Core · datasheet p.3
- Board format
- custom datasheet p.3
- Flight software support
- BSP for VxWorks, RTEMS or Linux; Driver SW API towards all HW functions; Boot Software including Standby Mode; partner offerings MAX FSW Toolbox (Rocket Lab) and TERMA cOBC Simulator datasheet p.3
- Radiation and fault mitigation
- EDAC / ECC on RAM 1 GiB DDR3 processing memory with ECC · datasheet p.3 ECC on flash 2.7 GiB non-volatile storage with ECC | other flight proven fault detection, isolation, and recovery (FDIR)…
- Random vibration
- 15 g RMS random vibration · datasheet p.3
- Satellite class
- GEO support for long missions in LEO, MEO and GEO · datasheet p.2
- Quasi-static load
- 15 g Random vibration · datasheet p.3
- Shock qualification
- 2 000 g 2000Hz · datasheet p.3
- Cores
- 2 2x e500Core · datasheet p.3
- GPIO lines
- 16 2 x 16 GPIO (per chain) · datasheet p.3 16 per Core Module
- Performance
- 3 600 DMIPS 1600 MFLOPS · datasheet p.3
- RAM type
- DDR3 datasheet p.3
- Redundancy
- other fully dual-redundant architecture, no single-point failures · datasheet p.3
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 supplier16 lines, in the manufacturer's own wording
- Architecture
- Complete subsystem based entirely on commercial components
- Redundancy
- Fully redundant, flight-proven FDIR
- Integrated functions
- On-board processing, GNSS receiver, ground communication, platform and payload interfaces
- Optional boards
- PDIO (analogue interfaces, magnetorquers, thermistors, stepper motors incl. SADE), PROPE (chemical propulsion interface)
- Frequency
- 800 MHz
- Processing memory
- 1 GiB DDR3
- Non-volatile storage
- 2.7 GiB
- Temperature
- -20 to +60 °C
- Random vibration
- 15 g RMS
- Shock
- 2000 g @ 2000 Hz
- Volume
- 300 x 119 x 239 mm³
- Power
- ~26 W
- Mass
- 5.4 kg
- GNSS accuracy
- 1m 3D RMS
- PPS time error
- < 100ns RMS
- Lifetime
- 10 years
About
The constellation On Board Computer (cOBC) is a complete subsystem entirely based on commercial components to enable high performance and short lead times at an affordable price, still delivering the high reliability Beyond Gravity is well known for. The constellation On Board Computer (cOBC) provides a host of functions including on-board processing, GNSS receiver, ground communication and both platform and payload interfaces.
The computer is fully redundant and offers flight proven fault detection, isolation, and recovery (FDIR) as well as radiation mitigation to provide a highly reliable solution.
The cOBC can be extended with dedicated I/O boards: the PDIO board offers common analogue interfaces to support magnetorquers, analogue acquisitions, thermistors, secondary power supplies, and stepper motors including SADE; the PROPE board offers the capabilities to interact with a chemical propulsion system.
Documentation
- constellation On Board Computer cOBC_datasheet_Satellites_2026-05-22.pdf PDF source: www.beyondgravity.com ↗
- cOBC-PDIO.PDF PDF source: www.beyondgravity.com ↗
- cOBC-PROPE.PDF PDF source: www.beyondgravity.com ↗
Need the full ICD, test reports or a specific revision? Ask the supplier directly.