1 American Institute of Aeronautics and Astronautics Validation Test Results from the Vehicle Cabin Atmosphere Monitor M. R. Darrach 1 , A. Chutjian 2 , B. J. Bornstein 3 , A. P. Croonquist 4 , V. Garkanian 5 , V. R. Haemmerle 6 , W. M. Heinrichs 7 , D. Karmon 8 , J. Kenny 9 , R. D. Kidd 10 , S. Lee 11 , J. A. MacAskill 12 , S. M. Madzunkov 13 , L. Mandrake 14 , T.M. Rust 15 , R. T. Schaefer 16 , J. L. Thomas 17 , and N. Toomarian 18 Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA 91109 We report on the results from validation testing the Vehicle Cabin Atmosphere Monitor (VCAM). VCAM is an autonomous environmental monitor based on a miniature gas chromatograph/mass spectrometer and is scheduled to be flown to the International Space Station (ISS) on shuttle mission STS-131. VCAM is capable of providing measurements of both ppb levels of volatile constituents and the atmospheric major constituents (nitrogen, oxygen, and carbon dioxide) in a space vehicle or station. It is designed to operate autonomously and maintenance free, approximately once per day, with a self-contained gas supply sufficient for a one-year lifetime. VCAM performance is sufficient to detect and identify 90% of the target compounds specified at the 24-hour Spacecraft Maximum Allowable Concentration level. This paper presents a summary of the pre-flight validation test results for VCAM. Nomenclature AMC = Atomic and Molecular Physics Group DU = Development Unit FTIR = Fourier Transform Infrared GC/DMS = Gas Chromatograph/Differential Mobility Spectrometer GC/MS = Gas Chromatograph/Mass Spectrometer HOSC = Huntsville Operations Support Center ISS = International Space Station JPL = Jet Propulsion Laboratory JSC = Johnson Space Flight Center LS = Laboratory Standard 1 Senior Technologist, Atomic and Molecular Physics Group, JPL/Caltech, Pasadena, CA 91109 2 Senior Scientist, Atomic and Molecular Physics Group, JPL/Caltech, Pasadena, CA 91109 3 Scientific Applications Engineer, Instrument Autonomy Group, JPL/Caltech, Pasadena, CA 91109 4 Systems Engineer, MicroDevices Group, JPL CalTech, Pasadena, CA 91109 5 Mechanical Engineer, Optical Communications Group, JPL/Caltech, Pasadena, CA 91109 6 Software Engineer, Processing Algorithms and Calibration Engineering, JPL/Caltech, Pasadena, CA 91109 7 System Engineer, Inst System Engineering, JPL/Caltech, Pasadena, CA 91109 8 Program Project Manager, Instruments & Science Data Systems, JPL/Caltech, Pasadena, CA 91109 9 Engineer, Instrument Integration and Test, JPL/Caltech, Pasadena, CA 91109 10 Research Scientist, Planetary Chemistry and Astrobiology, JPL/Caltech, Pasadena, CA 91109 11 Technologist, High Capacity Computing and Modeling, JPL/Caltech, Pasadena, CA 91109 12 Research Scientist, Atomic and Molecular Physics Group, JPL/Caltech, Pasadena, CA 91109 13 Research Scientist, AMC, Atomic and Molecular Physics Group, JPL/Caltech, Pasadena, CA 91109 14 Informatics Researcher, Machine Learning and Instrument Autonomy Group, JPL/Caltech, Pasadena, CA 91109 15 Propulsion Engineer, SpaceX, 1 Rocket Rd, Hawthorne, CA 90250 16 Electrical Engineer, Advanced Computer Systems and Technology, JPL/Caltech, Pasadena, CA 91109 17 Electrical Engineer, Advanced Computer Systems and Technology, JPL/Caltech, Pasadena, CA 91109 18 Program Manager, Advanced Instrument Concepts, JPL/Caltech, Pasadena, CA 91109 40th International Conference on Environmental Systems AIAA 2010-6094 Copyright © 2010 by the American Institute of Aeronautics and Astronautics, Inc. The U.S. Government has a royalty-free license to exercise all rights under the copyright claimed herein for Go