ANITA2 Flight Model Development – A status report of the multicomponent ISS Air Analyser
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- SINTEF Digital 
Original version47th International Conference on Environmental Systems, ICES-2017, 16-20 July 2017, Charleston, South Carolina
ANITA2 (Analysing Interferometer for Ambient Air) follows the European precursor mission ANITA1, which in 2007 and 2008 successfully operated on the ISS for 11 months. ANITA1 delivered information on the air conditions analysing in parallel 33 of the most important trace gases in the cabin atmosphere. The data have shown the benefits of in-situ measurements in a manned space cabin atmosphere. The advantages of the ANITA type instruments include high sensitivity, accuracy, precision and time resolution of the measurement data. The spectrometer relies on optical analyses with a Fourier Transform Infrared spectrometer. In 2016, OHB System and SINTEF were awarded by ESA the contract to develop the ANITA2 flight model, following some years of bread boarding of critical subsystems. The new system is characterised by a major reduction in mass, volume and power consumption, as well as improved characteristics in gas analysis sensitivity. The novel, sophisticated analysis S/W is further improved, employing statistical and non-linear calibration and analysis methods. As for ANITA1, the programme is planned to be a joint ESA/NASA project. It is also a stepping stone into the future, as a precursor system for manned exploration missions, e.g. to Mars and the Moon. The paper gives a progress report on the instrument development activities and will highlight status and achievements. The work described is performed under contract of the European Space Agency ESA.