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Proceedings Paper

EOS Aura MLS: first year post-launch engineering assessment
Author(s): Karen A. Lee; Richard R. Lay; Robert F. Jarnot; Richard E. Cofield; Herbert M. Pickett; Paul C. Stek; Dennis A. Flower
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Paper Abstract

The Microwave Limb Sounder (MLS) instrument, launched in July of 2004 on NASA's EOS Aura satellite, has been in its nominal science operating mode since August 2004. The objective of EOS MLS is to obtain measurements of atmospheric composition, temperature and pressure through observations of millimeter- and submillimeter-wavelength thermal emission as the instrument field-of-view is scanned through the atmospheric limb. The MLS instrument has completed activation, in-orbit calibrations have been performed leading to adjustments to radiometric calibration (Level 1) algorithms, a software upgrade was implemented for more robust operation of the laser local oscillator, and engineering performance trends have been established. This paper discusses the current status of the MLS instrument which now continuously provides data to produce global maps of targeted chemical species as well as temperature, cloud ice, and gravity wave activity. Performance trends are assessed with respect to characterization during initial on-orbit activation of the instrument, and with data from ground test verification prior to launch.

Paper Details

Date Published: 22 August 2005
PDF: 12 pages
Proc. SPIE 5882, Earth Observing Systems X, 58821D (22 August 2005); doi: 10.1117/12.620130
Show Author Affiliations
Karen A. Lee, Jet Propulsion Lab., California Institute of Technology (United States)
Richard R. Lay, Jet Propulsion Lab., California Institute of Technology (United States)
Robert F. Jarnot, Jet Propulsion Lab., California Institute of Technology (United States)
Richard E. Cofield, Jet Propulsion Lab., California Institute of Technology (United States)
Herbert M. Pickett, Jet Propulsion Lab., California Institute of Technology (United States)
Paul C. Stek, Jet Propulsion Lab., California Institute of Technology (United States)
Dennis A. Flower, Jet Propulsion Lab., California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 5882:
Earth Observing Systems X
James J. Butler, Editor(s)

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