| Complete Satellite Suite |
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Flight-proven dual redundant Avionics Suite
We can deliver a complete suite of spacecraft subsystems. As the configuration is used on various missions, this assures inter-operability between units and provides a cost-effective solution. Suites can be tailored for specific missions and applications.
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| AOCS Suite |
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AOCS Suite
A flexible configuration of attitude control sensors, actuators and control software to meet pointing requirements for cost-effective LEO missions.
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3-axis gyros, sun sensors, magnetometers, star trackers
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Reaction wheels, Magnetorquers
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GPS receivers
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Electronic Controllers
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Standard and/or custom control software
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| Reaction Wheels |
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Reaction Wheels
A range of wheels with different torque capabilities, designed for long life LEO missions. These are particularly suited to Earth observation missions where low noise performance is essential. All wheels feature an integrated electronic controller and include internal control software to support speed, torque, and current control modes.
Datasheets:
Microwheel 10SP-M
Microwheel 100SP-M
SmallWheel 200SP
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| SGR Range of GPS Receivers |
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SGR Range of GPS Receivers
The SGR range comprises several variants to monitor satellite position, velocity, and provide accurate time.
Applications
- Navigation for LEO missions
- Orbit and position determination
- Single base line attitude determination
- Accurate timing and synchronization
- Payload data time stamping
- Post-maneuver orbit determination
1,2 or 4 active patch antennae included
Datasheets:
SGR-05U
SGR-05P
SGR-07
SGR-10
SGR-20
SGR-GEO
GPS Frequently Asked Questions
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| Star Trackers |
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Star Trackers
Star trackers provide precise satellite orientation in support of payload pointing. Two variants are targeted at lowest cost and best performance requirements.
Star trackers comprise separate processing unit and sensor head, providing 3-axis attitude estimation and lost-in-space capability. Each star camera can be configured with a single string, dual redundant, or cross-strapped variant.
Applications
- LEO missions and constellations
- 3-axis control systems
- Agile spacecraft
Datasheets:
Star Tracker - Altair HB+
Star Tracker - Rigel L
Star Trackers Frequently Asked Questions
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| High Speed Data Recorder |
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High Speed Data Recorder
A range of modular data storage solutions in 16 GByte or 128 GByte blocks, providing over 5 Gbps processing capability each. The units support uploadable software applications such as specialist data processing and compression.
Applications
- Part of a payload downlink chain in LEO spacecraft
- Earth observation and science missions
- Data storage and onboard data processing
Datasheet:
High Speed Data Recorder
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| Onboard Computer OBC 695 and OBC 750 |
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Onboard Computer OBC 695
Single board computers with on-orbit reprogrammable software capability. The OBC 695 is designed for single-string operation in failure critical and harsh environments.
Onboard Computer OBC 750
The OBC 750 is designed for cold or hot redundant configurations and is based on a high speed "power PC" processor.
Datasheets:
OBC 750 LEO Flight Computer
Radiation Tolerant Flight Computer
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| X-Band Downlink Suite |
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X-Band Downlink Suite
A complete X-band downlink suite for maximizing and managing downlink capacity on a small spacecraft.
Surrey's X-band downlink suite consists of:
- High Speed Data Recorder
- X-Band Transmitter
- Antenna Pointing Mechanism
- X-Band Horn Antenna
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| X-Band Transmitter |
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X-Band Transmitter
A high speed payload downlink transmitter, with switchable data rates between 10-300 Mbps, and various modulation formats.
Surrey also offers S-band transmitters for TTC and store-and-forward applications with the same flexible configurations as the X-band version.
Datasheet:
X-Band Transmitter
X-Band Transmitter Frequently Asked Questions
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| S-Band Downlink Suite |
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S-Band Downlink Suite
A complete S-band communications suite for telecommand, telemetry, and payload downlink. Patch or Isoflux quadrifilar helix antennae can be used to meet different coverage requirements.
Surrey's S-band downlink suite consists of:
S-Band Transmitter
S-Band High Power Amplifier
S-Band Receiver
Patch Antenna
Quadrifilar Helix Antenna
Datasheets:
S-Band Transmitter
S-Band High Power Amplifier
S-Band Receiver
Patch Antenna
Quadrifilar Helix Antenna
S-Band Transmit Filter
S-Band Receive Filter
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| Propulsion System Suite |
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Propulsion System Suite
Hot gas systems based on Xenon or Butane and Surrey's electrically heated thruster. These systems provide high performance in a small volume and minimize handling, propellant loading, and shipping costs. These propellants prevent contamination of instruments, solar arrays, and thermal surfaces. Propulsion system includes electronic controller and firmware.
Datasheets:
Butane Propulsion System
Gas Propulsion System
Xenon Propulsion System
Low Power Resistojet
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| Power Management Suite |
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Power Management Suite
A complete solution to power generation, storage, conditioning and distribution for LEO missions up to 1.6 kW. Internally redundant, scalable power conditioning and switching. Surrey can also provide support for solar panel design, lay down, testing, and consultancy services.
Datasheets:
Solar Arrays
Power Systems
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