NASA NTRS · 20190025612
Concept Study for a Compact Planetary Homodyne Interferometer (PHI) for Temporal Global Observation of Methane on Mars in IR
Abstract
We present a concept study to develop a new instrument to sequentially and over a long time measure methane abundance on Mars and find out its global seasonal variations, if any. The Planetary Homodyne Interferometer (PHI) can offer integrated spectra over a wide field-of-view (FOV) in high spectral resolution (R~10(exp 5)) in a compact design using no (or a small < 1m) primary mirror. PHI is best suited to studies of sources where temporally tracing specific spectral features sensitivity, and spectral resolution is of higher significance than spatial fidelity.
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Hosseini, Sona, Webster, Chris, Toon, Geoffrey, Traub, Wesley, Trauger, John. 2016-06-26. Concept Study for a Compact Planetary Homodyne Interferometer (PHI) for Temporal Global Observation of Methane on Mars in IR. https://ntrs.nasa.gov/citations/20190025612
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