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One averaged composite PFS spectrum generated from over 1600 measurements, covering the wavenumber range (1/lambda): 2000-8130 cm^-1. Revealed is the detail of the existing data and also stated are some of the unanswered questions. The gaseous species are indicated: CO, CO₂, H₂O, HDO, NH₃, and S is for solar line. The solar spectrum is essentially unknown in half of the PFS region - these are the first space measurements at medium spectral resolution of the solar spectrum. To determine if a line is of solar, or martian origin is a challenging task. There are many regions with features detected that are not yet identified.

Point your mouse in the direction you want to move. The spectrum consists of 16 separate images and the vertical scale changes from image to image.