Planetary Protection Considerations For Exomars Meteorological Instrumentation.

Details Planetary Protection Considerations For Exomars Meteorological Instrumentation. Planetary Protection Considerations For Exomars Meteorological Instrumentation.

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dps....39.2418c&link_type=abstract

American Astronomical Society, DPS meeting #39, #24.18; Bulletin of the American Astronomical Society, Vol. 39, p.457

Astronomy and Astrophysics

Astronomy

Scientific paper

Planetary protection requirements for Oxford University's contribution to the upcoming ESA ExoMars mission are discussed and the current methods being used to fulfil these requirements are detailed and reviewed. Oxford University is supplying temperature and wind sensors to the mission and since these will be exposed to the Martian environment there is a requirement that they are sterilised to stringent COSPAR standards adhered to by ESA. Typically dry heat microbial reduction (DHMR) is used to reduce spacecraft bioburden but the high temperatures involved are not compatible with the some hardware elements. Alternative, low-temperature sterilisation methods are reviewed and their applicability to spacecraft hardware discussed.
The use of a commercially available, bench-top endotoxin tester in planetary protection is also discussed and data from preliminary tests performed at Oxford are presented. These devices, which utilise the immune response of horseshoe crabs to the presence of endotoxin, have the potential to reduce the time taken to determine bioburden by removing the need for conventional assaying -a lengthy and sometimes expensive process.

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