Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Separation Day Arrives for Mars Express and Beagle 2

19.12.2003


After a joint journey of 250 million miles (400 million km), the British-built Beagle 2 spacecraft and the European Space Agency’s Mars Express orbiter should now have parted and gone their separate ways.



At 8.31 GMT, software on Mars Express was scheduled to send the command for the Beagle 2 lander to separate from the orbiter. This would fire a pyrotechnic device that would slowly release a loaded spring and gently push Beagle 2 away from the mother spacecraft at around 1 ft/s (0.3 m/s).

If all goes according to plan, the release mechanism will also cause Beagle 2 to rotate like a spinning top, stabilising its motion during the final stage of its flight towards Mars.


Since Beagle 2 does not have a propulsion system of its own, it must be carefully targeted at its destination. With Mars Express acting as a champion darts player aiming at a bullseye, Beagle 2 should be placed on a collision course with the planet, following a precise ballistic path that will enable it to hit a specific point at the top of the Martian atmosphere in six days’ time.

Initial confirmation that the separation manoeuvre has been successful is expected at 10.40 GMT, when the European Space Operations Centre (ESOC) in Darmstadt, Germany, should receive X-band telemetry data from Mars Express. Further information from Mars Express and Beagle 2 telemetry confirming separation should be returned by 11.10 GMT.

In addition, it is hoped that the orbiter’s onboard Visual Monitoring Camera (VMC) will provide pictures showing the lander moving slowly away. The images are expected to be available within hours of the separation event.

However, after six months in space, during which the spacecraft were buffeted by solar storms, the manoeuvre is not without risk. Although it has been tested many times on Earth, there is always the outside possibility that something may go wrong during the all-important separation.

Even if the separation is successful, Beagle 2 must rely on its own battery, which cannot last beyond 6 days, until its solar arrays are fully deployed on the surface. This means that Mars Express must release Beagle 2 at the last possible moment in order to ensure that the lander has enough power for the rest of its journey to the rust-red Martian plains.

This will be the first time that an orbiter has delivered a lander without its own propulsion onto a planet and then attempted orbit insertion immediately afterwards.

Meanwhile, Mars Express will follow Beagle 2 for a while until, three days before arrival at Mars, ground controllers will have to fire its thrusters and make it veer away to avoid crashing onto the planet.

Early on 25 December, Beagle 2 should plunge into the atmosphere before parachuting to its planned landing site, a broad basin close to the Martian equator, known as Isidis Planitia. Later that day, Mars Express should enter orbit around Mars.

Beagle 2 has no propulsion system of its own so it is carried to Mars by the Mars Express spacecraft which will go into orbit around the planet for remote sensing purposes.

Gill Ormrod | alfa
Further information:
http://www.beagle2.com
http://www.pparc.ac.uk/Mars
http://www.esa.int/mars

More articles from Physics and Astronomy:

nachricht From rocks in Colorado, evidence of a 'chaotic solar system'
23.02.2017 | University of Wisconsin-Madison

nachricht Prediction: More gas-giants will be found orbiting Sun-like stars
22.02.2017 | Carnegie Institution for Science

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Safe glide at total engine failure with ELA-inside

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded after a glide flight with an Airbus A320 in ditching on the Hudson River. All 155 people on board were saved.

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded...

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

New pop-up strategy inspired by cuts, not folds

27.02.2017 | Materials Sciences

Sandia uses confined nanoparticles to improve hydrogen storage materials performance

27.02.2017 | Interdisciplinary Research

Decoding the genome's cryptic language

27.02.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>