November 2007

Professor Sir Martin Sweeting
Chairman,
Surrey Satellite Technologies Ltd. (SSTL), UK
"Small satellite constellation allow greater understanding of space"
Q. Your group's research
interests turned out to
be a successful business
model, leading SSTL's incep-
tion. How did this transforma-
tion come about?
Although SSTL was founded
as a commercial company 22
years ago, it all began in 1979,
when micro electronics was
enabling technology. A group
of young researchers and
radio enthusiasts started
developing satellites with high
capabilities but at low cost
and with small mass. At that
time satellites were getting
larger and more expensive
and it seemed that there was
an opportunity to reverse the
trend by using micro electronics,
building smaller satellites
that would be accessible and
affordable by universities,
research organisations and
developing countries whose
governments aspired to a
space programme.
Q. What were the early
challenges?
The financial challenges in the
beginning were quite severe,
mainly because we had no
money and started with only
100 pounds! We received a lot
of support from industry and
once the company was
formed we began working
with some developing countries,
including Korea, Malaysia
and Singapore, who were
interested in having access to
this technique and technology.
These partnerships evolved
over a period of time and that
allowed us to generate revenues
and then slowly build
up the company. The company
grew organically and consequently
slowly. It took almost
10 years to reach a position
where we could employ 25-
30 people and begin reinvesting
the profits year by year.
We never went out to find
venture capital or any other
type of investment, but little by
little, SSTL began to grow as a
commercial player in the small
satellite marketplace.
Technology and Evolution
Q. What were the strate-
gies in further strength-
ening of the technology?
We developed a "know-how"
transfer and training program,
with a number of countries as
the main point for our early
work and as the core part of
our activity. SSTL worked with
engineers from these countries,
helping them to develop
their own spacecraft and to
acquire technology know-how
using commercial off the shelf
technologies. By the late
1990's we had also built a
number of spacecraft for the
French Ministry of Defence
and the US Air Force. In 2000,
the application of these small
satellites in the Earth Observation
(EO) sector started to
become very apparent. We
began building the now operational
Disaster Monitoring
Constellation (DMC) and,
most recently, have built the
first of the Galileo satellites
for Europe. At present knowhow
transfer accounts for
60% of our business with
40% commercial missions
and systems.
Q. What factors determined
the development of
GIOVE-A at SSTL?
The European Commission
(EC) and the European Space
Agency (ESA) realised in July
2003 that if they were not
able to use the allotted frequency
by June 2006, they
would lose it. They were also
concerned that the large
satellite manufacturers could
not meet their deadline. SSTL
bid for and won the contract
to build GIOVE-A, whilst a
conventional industry consortium
was awarded a parallel
contract for GIOVE-B: The
cost of SSTL's GIOVE-A proposal
was approximately onethird
of the cost of the European
consortium submission.
With just a 30-month schedule
and a budget of less than
30 million Euros, SSTL completed
the satellite on time,
within budget. GIOVE-A was
launched on December 28th
2005, remains operational and
has been transmitting Galileo
signals from space for over 18
months, enabling the ground
equipment suppliers to develop
their products. Because of
the delays in GIOVE-B (the
latest indications point to a
launch early in 2008). SSTL
was awarded a second satellite
contract earlier this year by
ESA for GIOVE-A2.
Away from GIOVE, SSTL
believes it is essential to have
some Galileo services available
in a reasonable timeframe
and is discussing its
ideas for early services with
ESA and the EC.
Q. How do you see the
future prospect of
Galileo?
The whole idea of what to do
with the Galileo navigation
system is under debate in
view of the delays, the high
costs proposed and the lack
of competition. Consequently,
there are now serious talks
about what will happen. Personally,
I think that Galileo is
important for Europe and if
done in the right way and with
true competition, Europe can
afford it. I believe that there's
going to be some very serious
thinking about the business
case for constructing the
Galileo system. It is essentially
a European political business
decision to be taken with the
EC. SSTL is very happy to
help ESA and the EC by offering
a lower cost and quicker
route to implementing Galileo.
So once the politics have
been sorted out, we are here
to help.
Q. What are the future
prospects of the Disas-
ter Monitoring Constellation
(DMC)?
The first generation of the
DMC satellites have been
operating very successfully for
over 3 years now and we are
in the process of constructing
the 2nd generation DMC. The
Beijing-1 satellite launched 2
years ago is the forerunner of
the second generation DMC
satellites and has a 30 m
Wide Area Multispectral
(WAMS) imaging capability
and a 4 m panchromatic camera
to provide high resolution
data. A new satellite for Nigeria
will be launched within the
next 18 months and this will
also provide the 30 m WAMS
data and 2 .5 m panchromatic
data. The future DMC satellites
will increase the WAMS
camera's spatial resolution
from 30 to 22 m. The next
constellation will therefore
have increased resolution with
medium resolution multispectral
and high resolution
panchromatic alongside. We
are also talking to other countries
about the possibility of
joining the 2nd generation
DMC. Apart from DMC, we
are also building three EO
satellites for the Federal
Space Agency of Russia
which will be operating it as
part of Russia's national activities.
SSTL built the UK TopSat
satellite, launched in 2005,
which has 2.5 m panchromatic
and 5 m multispectral imaging,
providing high resolution
image data for the UK government.
TopSat has recently
been brought in alongside the
DMC satellites to provide high
resolution data.
Exploring the Unknown
Q. Why did SSTL enter into
space missions, Moon-
Lite and Moonraker?
SSTL has actually been working
in the background on
these mission proposals for
the last 10 years. We recognise
that small satellites can
help reduce the cost of exploration
of the solar system and
really help some of the countries
interested in exploring
outer space. We can provide a
very useful supporting role to
help reduce some of the cost
and speed up the program
through the use of small satellite
technologies and techniques.
The UK cannot fund
large exploration projects
alone - even the larger
nations find it very difficult to
fund these by themselves -
and there is a role for smaller
nations to contribute and provide
specialist services. These
nations might contribute to the
level that is commensurate
with their size, economy and
policies. The UK has specialist
strengths in small satellites,
robotics, communications and
space science instrumentation
- we can therefore contribute
significantly to the overall
international exploration effort
through small national space
missions addressing niche
areas and applications.
Vision
Q. What according to you
would 'govern' the future
of space programmes in a
global perspective?
Well, I have noticed over the
last decade that space is
becoming increasingly integrated
into our everyday life.
Globally space is becoming
increasingly important and I
think that we can see it continuing
to give benefits in
terms of climate change, environmental
monitoring,
resource management and
particularly water management.
And those are going to
be some of the critical topics
in the next decade. But I
believe that we will also see
satellites used increasingly
and more widespread for
security activities.
Looking to the future we will
see more satellites carrying
out a range of individual tasks
but operating in networks, with
a number of small satellite
constellations. This will allow
mankind to gain a greater
understanding of space and
the Earth.
|