Small satellites offer astronomers 'PC' access to the Universe

Apr 07, 2006

Small satellites are now ready to open up new avenues in astronomy, according to a presentation on Friday 7th April at the RAS National Astronomy Meeting in Leicester. Rapid advances in the capabilities of satellites smaller than a domestic washing-machine mean that they now have the pointing stability and accurate positioning needed to carry astronomical instruments, such as ultraviolet telescopes.

Stuart Eves of Surrey Satellite Technology Ltd (SSTL) said, “We see small satellites as the ‘PCs of astronomy’. Like personal computers, the capabilities of our satellites have moved forward very rapidly over the past decade. Whilst there will always be a role for the big ‘mainframe computer’ satellites, which can carry the huge mirrors and complex pointing equipment needed for some astronomical experiments, small satellites can be developed very quickly and the costs are relatively modest. This means that astronomical experiments can be designed, launched and be delivering results in under two years.”

SSTL has already carried out studies for the European Space Agency for a Mars sample return mission and a Venus entry probe but the company is now keen to work with the astronomical community on probing the depths of the Universe.

“Our satellites can now provide high-precision pointing using an automatic star camera system to determine the orientation of the platform, large amounts of on-board data storage and high data downlink rates to return the observations from the sensors as quickly as possible,” said Eves. “We are also now able to operate several satellites orbiting in formation and could develop small satellite constellations for experiments that need rapid responses, e.g. studying gamma-ray bursts, or three-dimensional investigations of an area of space, e.g. monitoring the solar wind.”

Don Pollacco of Queen’s University Belfast said, “Small satellites are useful in that they can be dedicated to just one or two instruments. This means that tried and tested instruments can be launched into space to study a specific problem relatively cheaply. It makes sense that the UK’s technical expertise in small satellites should be combined with the expertise of the British astronomical community.”

The relatively low costs involved mean that small satellites can be funded by a single country. Canada’s MOST satellite, which was launched in 1993 and has carried out high-precision photometry of stars, has paved the way for a much larger contribution to astronomy from small-scale missions.

Source: Royal Astronomical Society

Explore further: Why is Venus so horrible?

add to favorites email to friend print save as pdf

Related Stories

Underfire Uber ramps up rider safety

4 hours ago

Uber is ramping up driver background checks and other security measures worldwide after the smartphone-focused car-sharing service was banned in New Delhi following the alleged rape of a passenger.

US probe links NKorea to Sony hacking

4 hours ago

A U.S. official says federal investigators have now connected the Sony Pictures Entertainment Inc. hacking to North Korea and are expected to make an announcement in the near future.

New York state bans fracking

4 hours ago

Governor Andrew Cuomo said Wednesday he would ban hydraulic fracking in New York State, citing health concerns about the controversial oil and gas drilling technique.

Sony cancels NKorea parody film release after threats

4 hours ago

Hollywood studio Sony Pictures on Wednesday abruptly canceled the December 25 release date of "The Interview," a parody film which has angered North Korea and triggered chilling threats from hackers.

Recommended for you

Why is Venus so horrible?

1 hour ago

Venus sucks. Seriously, it's the worst. The global temperature is as hot as an oven, the atmospheric pressure is 90 times Earth, and it rains sulfuric acid. Every part of the surface of Venus would kill you ...

Image: Christmas wrapping the Sentinel-3A antenna

4 hours ago

The moment a team of technicians, gowned like hospital surgeons, wraps the Sentinel-3A radar altimeter in multilayer insulation to protect it from the temperature extremes found in Earth orbit.

Video: Flying over Becquerel

4 hours ago

This latest release from the camera on ESA's Mars Express is a simulated flight over the Becquerel crater, showing large-scale deposits of sedimentary material.

Spinning up a dust devil on Mars

5 hours ago

Spinning up a dust devil in the thin air of Mars requires a stronger updraft than is needed to create a similar vortex on Earth, according to research at The University of Alabama in Huntsville (UAH).

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.