Asteroid Space Vehicle Bus
ESPA Grande Class Small Spacecraft Bus
ASTEROID is an ESPA Grande Class Small Spacecraft Bus product family used for a variety of missions in LEO (< 600 km). ASTEROID is ideal for telescope-based missions leveraging its Ø36” x 54” hollow internal volume. ASTEROID leverages the same core avionics from Moog’s Space Vehicle family that have been demonstrated in missions from LEO to the Moon. Agile platform with no deployables reduces any jitter. The simple and robust all aluminum structure provides stiffness, radiation shielding, and stable thermal environment.
Key Features
- Avionics leveraging Moog’s BRE440™ Rad-Hard CPU
- LEO up to 600 km with 3-5 year life
- Flexible flight software is payload and mission configurable
- 3-Axis stabilized platform with reaction wheels and torque rods
- Single string but layered GNC sensor suite provides resiliency
- Ideal for ESPA Grande rideshare launches
Specifications
| Characteristic | Performance / interfaces |
Orbit |
Up to 600 km |
| Mission Life | 3-5 years |
| Radiation | 25.5 kRad total dose with 0.200” Al shielding |
| Radiation Effects | Availability due to SEU of >99% over 1 year |
| Example Payload Power (Orbit and Mission Dependant) |
~25 W OAP Payload Power |
| Bus Mass | 150 kg Bus Dry Mass |
| Bus Volume | 42” x 46” x 56” height (or radial direction if on ESPA) |
| Orbital Position Knowledge | <5 m |
| Attitude Knowledge Telemetry Accuracy | <10 arc-sec (1 sigma) |
| Pointing Accuracy | <10 arc-sec (1 sigma) |
| Attitude (Pointing) Stability/Jitter | Jitter < 1 arc-sec |
| Velocity Accuracy | 0.1 m/s |
| Maximum Slew Rate | >1 deg/sec |
| Delta-V | None – No Propulsion |
| Payload Interfaces (Data) | 2 x SpaceWire, 4xDiscretes, 1 x GPS 1PPS (via LVDS) |
| Payload Interfaces (Power | 28 [25/33] VDC Unregulated Bus Voltage (multiple 1.2 A switches) |
| Payload Interfaces (Mechanical) | Ø36” x 54” internally mounted to Bus |
| Payload Mass | 100-150 kg |
Resources
Datasheets, Brochures and Catalogs
Infographics
Related Industries
Space
Moog has designed and manufactured components and systems for satellites and launch vehicles for more than 60 years.
Defense
Moog is recognized by military forces around the world for its industry-leading solutions, which include counter-unmanned aerial systems (C-UAS), fast ammunition handling, precise missile steering, weapon stores management, turreted weapon systems and quiet undersea actuation.