Investigation of Jupiter’s stratospheric winds, temperature and composition,
targeting one (or more) molecular line(s) at the planetary limb with a 3  resolution in latitude.
The investigation of Jupiter’s stratospheric dynamics (winds) requires measuring the Doppler shifts induced by zonal winds on strong lines. The observations require a very high signalto-
noise ratio ( 100) and a very high spectral resolution (100kHz). Similar requirements for
the investigation of Jupiter’s stratospheric chemical inventory and temperature as a function of
latitude. At each limb position, a short  10-point across-limb scan of the continuum emission
is performed with the CCH to derive a posteriori the instrument pointing. Two CTS spectra are
recorded for 60 seconds over 10000 channels (16 bits coding), and two CCH measurements (20
bits coding) are recorded for 0.1 second. Position-switch calibration method.