anita2: the next generation trace gas monitoring for the iss

Paper number

IAC-15,A1,IP,2,x28486

Author

Dr. Peter Hofmann, OHB System AG - Munich, Germany

Coauthor

Dr. Timo Stuffler, OHB System AG - Munich, Germany

Coauthor

Dr. Volker Klein, OHB System AG - Munich, Germany

Coauthor

Mr. Atle Honne, SINTEF, Norway

Coauthor

Mr. Norbert Henn, Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Germany

Year

2015

Abstract

Following the successful European precursor mission ANITA1 (Analysing Interferometer for Ambient ‎Air) operating on ISS for about 1 year in 2007/2008, the next generation system ANITA2 is in the ‎design and breadboarding phase. ANITA1 has shown the advantages of an optical sensor with high ‎time resolution and the simultaneous detection and quantification of the most important trace gases ‎in the ISS atmosphere. The data have delivered surprising results on the dynamics of the crewed ‎cabin atmosphere. Events occurring during the system operation like e.g. Shuttle docking, leakage ‎in the Russian cooling system, detection of an unknown gas, and variable activity levels for the ‎crew, could be identified, analysed, and assigned to the different happenings.‎ 

The successor instrument ANITA2 is now in the development phase considering all lessons learned ‎from the ANITA1 instrument. The new instrument is designed for improvements in the sensitivity of ‎at least one order of magnitude. It will be a compact and self-standing unit. ANITA2 will be calibrated ‎to detect and quantify simultaneously and quasi on-line 33 or more of the most important trace gases ‎in the cabin atmosphere. The optimised instrument in combination with sophisticated analysis SW - ‎based on advanced simulations and statistical regression techniques - will form a reliable and ‎compact multi-gas air quality monitor. 

‎ANITA2 is like ANITA1 suggested to be a cooperative programme with NASA. ANITA2 further ‎represents a precursor system for missions e.g. to Moon and Mars under the manned exploration ‎programme. The following ANITA3 system will be a high performance, maintenance-free ‎measurement unit approaching the size of a shoe box. 

‎The paper will highlight the benefits of an in-situ trace gas monitoring system for closed habitat ‎systems such as the ISS.

Abstract document

IAC-15,A1,IP,2,x28486.brief.pdf

Manuscript document

(absent)