MARS-96          ROBOTIC SPACECRAFT MISSION TO MARS. Brief description
Table of contents
Inroduction
Scientific goals
Scheme of the mission
Spacecraft
Orbiter
Payload of the Orbiter
Scientific goals of
the experiments
Description of
the instruments
Small Stations
Penetrators
Conclusion
 Experiment: SPICAM

MULTICHANNEL OPTICAL SPECTROMETER

SOUNDING OF THE ATMOSPHERE OF MARS



Main scientific objectives:

  • vertical profiles of ozone, water vapour, CO, aerosols and temperature in the middle and lower atmosphere;
  • diagnostic of the ionosphere by measuring of ions CO2+, CO+, and neutral species H and CO;
  • global distribution of water vapour and building of the density model of the atmosphere.

    Experimental technique:
  • measuring spectra of sunlight passed through the Martian atmosphere at the limb of the planet;
  • measuring spectra of sunlight reflected from the surface and attenuated in the atmosphere of Mars;
  • measuring auroral spectra of the Martian atmosphere

    • Main parts of the instrument:

    SPICAM-S - Solar part of the instrument is a two-channel spectrometer for the technique of Solar occultation. It is mounted on the body of the spacecraft:
    UV and visible channel = 250-650 nм, l/Dl = 300;
    IR channell = 1,8-4,8 mm, l/Dl = 1000

    SPICAM-E -a versatile spectrometer for the technique of stellar occultation and observations of the Martian atmosphere; it includes three spectral channels, and it is mounted on the PAIS platform :
    UV channell = 110-300 nм, Dl = 3 A;
    Visible channell = 200-800 nм, Dl = 3 или 15 A;
    Near IR channell = 600-1100 nм, Dl = 3 or 0.58 A for
    measuring H2O at 936 nм.
    Mass46 kg




    Cooperation: Russia, France, Belgium.

    Contact persons:O.I. Korablev oleg@irn.iki.rssi.ru
    J.-L. Bertaux bertaux@aerov.jussieu.fr
    M. Ackerman acherman@oma.be


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