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 SF State astronomer searches for signs of life on Wolf 1061 exoplanet
20.01.2017 | San Francisco State University

nachricht Molecule flash mob
19.01.2017 | Technische Universität Wien

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: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>