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R. A. H. BUTLER, L. R. BROWN, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109,USA; I. KLEINER AND L. SAGUI, Laboratoire de Photophysique Moléculaire, Université Paris Sud, 91405 Orsay Cedex, France.
Progress on the analysis of the high resolution spectrum of PH3 in the 3 µm region between 3100 to 3600 cm-1 is reported. The objective is to provide line parameters for remote sensing of Saturn. For this, laboratory spectra have been recorded at a resolution of 0.012 cm-1 using the Fourier transform spectrometer located at the Kitt Peak Observatory. Using ground state combination differences, several hundred transitions have been assigned in
1+
2,
3+
4,
1+
4 and
2+2
4 centered around 3307, 3425, 3432 and 3215 cm-1 respectively. Analysis and preliminary modeling of the interacting energy states will be presented.