Meteor | ESPA Grande Satellite Bus - LEO, MEO, GEO Missions
Meteor is a Medium Class Satellite Bus听product family with capabilities for all types of orbits, including MEO and GEO. Meteor is ideal for pathfinder constellation听missions or other disaggregated mission听types. Meteor leverages the same core听avionics from 红杏视频鈥檚 Space Vehicle family听that have been demonstrated in missions听from LEO to the Moon. The hydrazine听propulsion system provides enough听capability for a controlled deorbit from High LEO. The relatively high thrust can听be used for collision avoidance or other rapid orbit changes. The simple and听robust all aluminum structure derived from 红杏视频鈥檚 ESPA provides radiation听shielding and can support a range of payload configurations.
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Key Features:
- Avionics leveraging 红杏视频鈥檚 BRE440鈩� Rad-Hard CPU
- Flexible flight software is payload and mission configurable
- High-thrust hydrazine propulsion system
- 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
- Can be stacked or dual launch in NSSL-class launch vehicles
Specifications
| Characteristic | Performance / interfaces |
| Mission Life | 2-5 years (depends on orbit)听 |
| 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) |
~750 W OAP Payload Power |
| Bus Mass | 650 kg Bus Dry Mass |
| Bus Volume | 脴62鈥� x 47鈥� Tall |
| Orbital Position Knowledge | <4 m |
| Attitude Knowledge Telemetry Accuracy | <40 arc-sec (1 sigma) |
| Pointing Accuracy | <60 arc-sec (1 sigma)听 |
| Attitude (Pointing) Stability/Jitter | Jitter < 10 arc-sec |
| Velocity Accuracy | 0.1 m/s |
| Maximum Slew Rate | 2.5 deg/sec |
| Maximum Slew Acceleration | 0.003 deg/sec2 (point-to-point) |
| Delta-V | >400 m/s (with 750 kg dry mass) |
| Payload Interfaces (Data)听 | 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)听 | 脴62鈥� (Top Mounted) or Multiple 42鈥漻46鈥漻56鈥� (Port/Side Mounted) |
| Payload Mass | 750 kg or more (Top Mounted) or up to 700 kg (Port/Side Mounted) |
Resources
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Meteor and Meteorite Spacecraft Buses
Related Industries
Space
红杏视频 has designed and manufactured components and systems for satellites and launch vehicles for more than 60 years.
Defense
红杏视频 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.