The SSTL-X50 series
Next-Generation Missions
SSTL-X50
SSTL-X50
SSTL-X50
SSTL-X50
EarthMapper
TrueColor
Precision
Platform
Surrey Satellite Technology
is the world’s leading small
satellite manufacturer
SSTL is a pioneering space company and world leader in designing,
manufacturing and operating high-performance satellites.
Surrey has over 200 years on-orbit experience gained through more than 40 satellites completed
over the past 30 years delivering telecommunications, navigation, and remote sensing solutions to
our international customers.
Surrey prides itself on providing satellite missions from first concept through to on-orbit operations.
We specialize in adapting advanced terrestrial technologies and processes to the harsh
environment of space, continually developing satellite technology and delivering high-performance,
cost-effective missions.
Introducing the X-Series Missions
Applications | Innovation | Value
Scalable Architecture
For more than 30 years Surrey has been committted to
providing low-cost access to space for commercial, civil,
and scientific Earth observation applications. The new
range of X-Series spacecraft brings the benefits of even
shorter schedules from order to orbit, reduced fixed-price
cost, and enhanced systems capabilities and quality.
Core platform services such as power, structure,
processing, communications, and high-precision
attitude control are scaled to meet any mission:
•Flexible low-cost structural design developed for
rapid assembly, integration, and test
•Automated batch avionics manufacturing and test
Many Missions: One Design
A single system architecture and technology designed to
meet all mission applications and requirements across
the entire range. Common performance available on all
platforms and missions:
•Dual redundant systems
•Data storage up to Terabytes capacity
•Data bus transfer rates of Gigabits per second
•Onboard real-time processing of Giga-instructions
per second
•High speed X-Band downlink
•Miniaturized subsystems, components, and high density technology
World Leading Engineering
High performance at low risk is delivered through the
application of experience, processes, and techniques
proven over 40 successful missions. Know-how unique
to Surrey, such as application of technologies drawn from
the industrial, automotive, and aerospace industries, is
combined with cutting-edge manufacturing and test.
The result is the most advanced and cost-effective small
satellite range in production.
Innovating at Every Level
Next-Generation Technology
Highly Adaptable
Baselining Surrey’s flight-proven heritage, X-Series
technology will be applied across the entire range of
systems, missions, and user applications.
Surrey’s next-generation satellites will continue to deliver
highly adaptable missions supporting a wide variety
of user requirements and will provide industry-leading
payload accommodation supported by high-performance
platform systems.
Enabling User Applications
Surrey missions have a proven track record of enabling
applications previously considered unfeasible. The
X-Series spacecraft will enable even more applications for
commercial, scientific, and civil applications, by driving
down mission costs, reducing delivery timescales, and
providing, as standard, high performance and capacity.
Consistent Performance
X-Series technology is designed to provide consistent and
dependable mission performance. Advanced manufacturing
and automated test are used to evaluate satellite systems
during the assembly phases. The compact, highly
integrated design incorporates fully dual redundant
subsystems, while flight-proven operational safety and
recovery mechanisms ensure high mission availability.
SSTL-X50 EarthMapper
Image Product Generation
Throughput (all bands)
130 million km2 in less than 5
days (one satellite)
Data Products
Radiometrically and
geometrically calibrated
Spectral Bands
Commercial quality
Red, green, near infrared
Ground Sample
Distance (GSD)
22 m
Swath
600 km
SNR
All bands >100:1
Raw Digitization
8–14 bits
Satellite
“Always on” Imaging System
A global imaging system providing full coverage of
Earth’s land area in 5 days. Flown as a constellation
of 5 spacecraft, EarthMapper can image the entire
global land mass every day. EarthMapper has a
large volume of data storage and power generation
capacity with high downlink availability. The
spacecraft builds on our heritage design offering
advanced capability at low risk.
Applications
Suitable for a wide variety of commercial, environmental,
and security applications. EarthMapper continuously
images the sunlit land mass and is particularly suited
to applications requiring a high temporal revisit rate.
Reference Orbit
686 km, SSO, 10:30am LTAN
Design Lifetime
5 to 7 years
Typical examples include:
Redundancy
Dual redundant systems
•Mapping
Mass
50 kg
•Agricultural monitoring
Compression Ratio
Lossless up to 2.5:1
Lossy 4:1 or higher
•Flood monitoring
Data Storage
256 Gbytes
Downlink
80–160 Mbits per second
•Water quality
•Disaster management
•National and urban mapping
(The Pearl-Qatar, Doha, Qatar, UK-DMC2, image copyright © 2011 DMCii). The image above has been
captured from a 22 m GSD “EarthMapper” payload in-orbit operating on the Surrey mission “UK-DMC2”
SSTL-X50 TrueColor
Image Product Generation
Throughput (all bands)
3.6 million km2 per day
Data Products
Radiometrically and
geometrically calibrated
Spectral Bands
Commercial quality
Blue 450–515 nm
Green 525–605 nm
Red 630–690 nm
NIR 774–900 nm
SWIR 1550–1750 nm
Ground Sample
Distance (GSD)
15 m (visible, NIR bands)
30 m (SWIR band)
(Higher resolution option available)
Enhanced True Color Imaging
An imaging system designed for EO applications
requiring many spectral bands and a wide imaging swath,
giving exceptional imagery in both quality, quantity, and
resolution. The combination of spectral bands provide
true color imaging with enhanced information density,
broadening the end user’s range of applications. The
compact optical design provides industry leading
performance and is ideal for customers seeking to exploit
the ever expanding EO application market.
Applications
Swath
440 km (all bands)
SNR
All bands >100:1
Suitable for a wide variety of commercial, civil, and
security applications. Typical examples include:
Raw Digitization
8–14 bits
•Mapping
•Vegetation mapping
Satellite
•High accuracy land cover assessments
•Flood monitoring
Reference Orbit
703 km, SSO, 10:30am LTAN
Design Lifetime
5 to 7 years
Redundancy
Dual redundant systems
•Disaster management
Mass
75 kg
•National and urban mapping
Compression Ratio
Lossless up to 2.5:1
Lossy 4:1 or higher
•Geological mapping
Data Storage
256 Gbytes
Downlink
80–160 Mbits per second
•Water quality
(Three Gorges Dam, China, copyright © 2003 SSTL & ESA). The image above has been captured from a
Surrey-manufactured CHRIS payload (17 m GSD) in-orbit operating on the ESA mission “PROBA”
SSTL-X50 Precision
Image Product Generation
Throughput (all bands)
280,000 km2 per day
Data Products
Radiometrically and
geometrically calibrated
Spectral Bands
Commercial quality
panchromatic multispectral:
red, green, blue
Ground Sample
Distance (GSD)
PAN: 3 m
Multispectral: 6 m
Single image or video mode
Satellite Agility
+/- 20 deg roll
Swath
24 km (all bands at Nadir)
Field of Regard
400 km
SNR
All bands >100:1
Raw Digitization
8–14 bits
High-Resolution Earth Observation
A compact next-generation satellite capable of high
resolution in panchromatic and multispectral wavebands.
Designed with advanced detector, mirror, and optical
assemblies, Surrey can offer a highly compact and
capable imaging mission. The agility of the platform allows
an effective field of regard of 400 km. Ideally suited to a
constellation of satellites, the users of the system would
have a high temporal and spatial imaging system.
Applications
Suitable for a wide variety of commercial, civil and
security applications. Typical examples include:
•High accuracy land cover assessments
Satellite
•Global high-resolution situational awareness
•Disaster management
Reference Orbit
550 km, SSO, 10:30am LTAN
•High-resolution mapping
Design Lifetime
5 to 7 years
Redundancy
Dual redundant systems
•Agricultural monitoring
Mass
60 kg
Compression Ratio
Lossless up to 2.5:1
Lossy 4:1 or higher
Data Storage
256 Gbytes
Downlink
80–160 Mbits per second
•Flood monitoring
•Water quality
•Geological mapping
•Vegetation mapping
(Manhattan, United States, NigeriaSat-2, image copyright © 2012 NASRDA). The image above has been
captured from a Surrey-manufactured 5 m GSD payload, operating in-orbit on the “NigeriaSat-2” mission
530m
m
Figure shows the volume
available for payload
instruments on the
SSTL-X50 Platform
400m
m
43
0m
m
SSTL-X50 Platform
Payload Accommodation and Services
Payload Instrument Mass Up to 45 kg
Volume
Width 530 mm, Depth 430 mm,
Height 400 mm
Payload Field of View
Unobstructed field of view for
payloads is possible
Payload Orbit Average
Power*
35 W
Payload Peak Power*
85 W
Platform Services
Redundancy
Dual redundant systems
High Speed Data
Interface
Gigabit per second payload data
bus direct to data storage and/or
high speed downlink
Telemetry,
Telecommand
Data Interface
CAN bus standard
Customer defined interfaces
supported
Attitude Error
Knowledge: 10 arcseconds
Control: 0.07 degrees
Rate stability: 18 arcseconds/sec
Attitude Modes
Supported Orbits
Primary: Earth referenced
Secondary: Inertial reference
platforms available
Low-Earth orbit altitudes at sun
synchronous inclinations
Non-sun synchronous inclination
platforms available
Platform Lifetime
5 to 7 years
Platform Mass
Total platform and payload mass
up to 75 kg supported
Platforms for any mission
The SSTL-X50 Series Platform is designed to meet a wide
range of payload and mission requirements. Mechanically
and electrically flexible to support any mission, the
platform supports a very wide range of orbit altitudes and
inclinations. A significant percentage of the platform mass,
volume and power is available to the payload. Payloads
have access to Gigabit per second data buses, real-time
processing, TeraByte storage capacities and downlink
over high speed X-Band systems. The highly agile 3-axis
stabilized satellite also supports a propulsion system with
GPS orbit navigation.
Applications
Suitable for a wide variety of payloads and missions
including:
•High- and medium-resolution imaging
•Thermal imaging
•Multispectral and hyperspectral imaging
•Atmospheric and Earth science
•Space science
•Astronomy
•Technology demonstration
•Communications
•AIS, ADS-B, and asset tracking
*This can be increased with the addition of deployable solar arrays.
Surrey Satellite Technology US LLC
345 Inverness Drive South, Suite 100
Englewood, Colorado 80112
303.790.0653 | info@surreysatellite.com | www.surreysatellite.com