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.
Key figurescomparable across the catalogue
- Mass
- 0.35 kg
- Power
- 5 W
- Largest dimension
- 160 mm
- Design life
- 8 years
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- 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.