Meteorite | ESPA Class Satellite Bus - LEO, MEO, GEO Missions
METEORITE is an ESPA Class spacecraft bus used for a variety of missions in LEO including High LEO. Its capabilities extend to MEO and GEO missions. METEORITE is ideal for pathfinder聽constellation missions or other disaggregated聽mission types. METEORITE leverages the聽same core avionics from 黑料社鈥檚 Space聽Vehicle family that have been demonstrated聽in missions from LEO to the Moon. The green聽propulsion system is ideal for rideshare or聽dedicated small launch vehicle missions and provides enough capability for deorbit聽from High LEO. The relatively high thrust can be used for collision avoidance or聽other rapid orbit changes. The simple and robust all aluminum structure provides聽radiation shielding and can support a range of payload configurations.
Key Features
- Avionics leveraging 黑料社鈥檚 BRE440鈩� Rad-Hard CPU
- Flexible flight software is payload and mission configurable
- Green propulsion system for ease of launch
- 3-Axis stabilized platform with reaction wheels and torque rods
- Single string but layered GNC sensor suite provides resiliency
- Modular power system can be expanded as needed
- ESPA or dedicated small launch compatible
Specifications
| Characteristic | Performance / Interfaces |
| Mission Life | 2-5 years (depends on orbit)聽 |
| Radiation | 25.5 kRad total dose with 0.200鈥� Al shielding |
| Radiation Effects | Availability due to SEU of >99% over 1 year |
| Example Payload Power (Orbit and Mission Dependant) |
~150 W OAP Payload Power ~300 W Peak Payload Power for 50% of orbit |
| Bus Mass | 120 kg Bus Dry Mass |
| Bus Volume | 22鈥� x 28鈥� x 23.65鈥� height (or radial direction if on ESPA) |
| Orbital Position Knowledge | <4 m |
| Attitude Knowledge Telemetry Accuracy | <40 arc-sec (1 sigma) |
| Pointing Accuracy | <60 arc-sec (1 sigma)聽 |
| Attitude (Pointing) Stability/Jitter | Jitter < 10 arc-sec |
| Velocity Accuracy | 0.1 m/s |
| Maximum Slew Rate | 2.5 deg/sec |
| Maximum Slew Acceleration | 0.3 deg/sec2 (point-to-point) |
| Delta-V | >175 m/s (with 200 kg dry mass) |
| Payload Interfaces (Data)聽 | 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)聽 | 22 in x 28 in 鈥渇lat deck鈥� and can be up to 30 in height for ESPA launch or greater for dedicated small launch vehicle |
| Payload Mass | 100 kg 鈥� Can be greater but Spacecraft will exceed 220 kg ESPA Class |
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Meteor and Meteorite Spacecraft Buses
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