Onboard Computer (OBC)
Dragonfly Aerospace
High reliability, low-power flight computer with integrated AOCS interface and controller for low Earth orbit spacecraft, available exclusively as part of Dragonfly Aerospace spacecraft system solutions.
Typed specifications61 values
Discloses 11 of 13 fields engineers filter by in this category (category median 5).
- Processor
- Dual Core ARM-A9 datasheet p.2 Hard 166-MHz 32-Bit ARM Cortex-M3 with FPGA with 12k LEs magnetic interface controller | Dual Core ARM-A9 (766 MHz) main OBC processor
- Mass
- 350 g datasheet p.2
- CPU clock
- 766 MHz datasheet p.2 166 MHz magnetic interface controller, ARM Cortex-M3 | 766 MHz main OBC processor
- Envelope (L×W×H)
- 160 x 117 x 30.5 mm datasheet p.2 160 x 117 x 30.5 mm EuroCard 3U form factor
- RAM
- 256 MB Dual · datasheet p.2 0.063 MB magnetic interface controller, SDRAM | 256 MB main OBC, dual 256 MB SDRAM
- Mass storage
- 0.125 GB Dual Flash · datasheet p.2 32 GB Dual SD Card | 32 GB main OBC, dual 32 GB SD card (non-volatile memory, flash)
- Operating system
- Linux 4.14 build for Xiphos Q7S datasheet p.2 Linux Linux 4.14 build for Xiphos Q7S
- Supply voltage
- 24–32 V single input 24-32 V · datasheet p.1
- Power consumption
- 5 W datasheet p.2
- Data interface
- RS-422 14× · datasheet p.2 RS-422 14x RS422 (main OBC) | CAN 2× | CAN 2x CAN (main OBC); 2x CAN (magnetic interface controller) | RS-485 2x RS485 (main OBC); 2x RS485 (magnetic interface controller) +6
- Operating temperature
- -10 °C product page -10–50 °C
- Design lifetime
- 8 years up to, LEO · datasheet p.0 8 years max · design life up to 8 years LEO | 8 years max · LEO
- TRL
- 9 datasheet p.1
- Export status
- ITAR-free ITAR-Free · datasheet p.1
- Processor architecture
- ARM Cortex-M magnetic interface controller, ARM Cortex-M3 · datasheet p.1 ARM Cortex-A main OBC processor, Dual Core ARM-A9
- Board format
- custom datasheet p.1
- Flight software support
- CCSDS TCTM, CCSDS File Delivery Protocol, Direct Command Terminal; Lua mission scripts with systemd for scheduling; bespoke Satellite Controller, Applications & FDIR; bespoke sensor and actuator drivers (CTRS, GNSS, RW, ST, FOG, PROP, DTX, FSS) datasheet p.1
- Radiation and fault mitigation
- memory scrubbing data scrubbing (main OBC reliability) · datasheet p.1 current and upset monitoring health monitoring: internal voltages & currents, internal tem… | latch-up protection (current limiting) latch-up detection circuitry on all internal power supplies a… | EDAC / ECC on RAM RAM ECC (main OBC reliability) | hardware watchdog watchdog (main OBC and magnetic interface controller) +6
- Cores
- 2 main OBC processor, dual core · datasheet p.1
- FPGA
- FPGA with 12k LEs (magnetic interface controller) datasheet p.1
- RAM type
- SDRAM main OBC memory · datasheet p.1
- Program / boot memory
- 256 MB magnetic interface controller, non-volatile memory (flash), r… · datasheet p.1 128 MB main OBC, dual 128 MB Flash, robust boot (4 boot areas)
- Redundancy
- single string stand-alone or dual-redundant operation · datasheet p.1 other stand-alone or dual-redundant operation
- Analog inputs
- 12 external temperature interfaces, 12x thermistor · datasheet p.1 5 magnetometer inputs, 5x 0-5V (12 bits ADC)
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 supplier10 lines, in the manufacturer's own wording
- Operating temperature
- -10 °C to +50 °C
- Form factor
- EuroCard 3U
- Dimensions
- 160 x 117 x 30.5 mm
- Mass
- 0.35 kg
- Design life
- Up to 8 years LEO
- Supply voltage
- Single input 24–32 V
- Power consumption
- 5 W
- Processor
- Dual Core ARM-A9 (766 MHz)
- Memory (SDRAM)
- Dual 256 MB
- Non-volatile memory (Flash)
- Dual 32 GB (SD Card)
About
The OBC is a flight-proven, high-reliability onboard computer designed for low Earth orbit microsatellites. It conforms to the Eurocard 3U form factor and includes standard interfaces essential for most satellite sensors and actuators. With substantial processing power and memory, it can run a complete satellite software suite, including high-fidelity AOCS with FDIR. The OBC can operate independently or as part of a redundant pair for enhanced reliability. It also includes an independent microcontroller dedicated to magnetic control, capable of performing satellite detumbling and basic AOCS operations. The main OBC processor is a Dual Core ARM-A9 (766 MHz) with dual 256 MB SDRAM and dual 32 GB non-volatile memory (SD Card). It features robust boot, data scrubbing, health monitoring, watchdog, and RAM ECC, and is in-flight reprogrammable. Communication interfaces include 2x CAN, 2x SpaceWire, 14x RS422, 2x RS485, and DCL. The magnetic interface controller features a Hard 166-MHz 32-Bit ARM Cortex-M3 processor and an FPGA with 12k LEs.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.