Original Article

Experimental Astronomy

, Volume 23, Issue 3, pp 761-783

First online:

Mars environment and magnetic orbiter model payload

  • B. LanglaisAffiliated withLaboratoire de Planétologie et de Géodynamique, Université de Nantes Email author 
  • , F. LeblancAffiliated withService d’Aéronomie du CNRS/IPSL, Université Pierre et Marie Curie
  • , T. FouchetAffiliated withObservatoire de Paris
  • , S. BarabashAffiliated withSwedish Institute of Space Physics
  • , D. BreuerAffiliated withDLR, Institute of Planetary Research
  • , E. ChassefièreAffiliated withService d’Aéronomie du CNRS/IPSL, Université Pierre et Marie Curie
  • , A. CoatesAffiliated withDepartment of Space and Climate Physics, University College London
  • , V. DehantAffiliated withRoyal Observatory of Belgium
  • , F. ForgetAffiliated withLaboratoire de Météorologie Dynamique/IPSL
    • , H. LammerAffiliated withSpace Research Institute, Austrian Academy of Sciences
    • , S. LewisAffiliated withDepartment of Physics and Astronomy, The Open University
    • , M. Lopez-ValverdeAffiliated withAIRE, Instituto di Astrofisica di Andalucia
    • , M. MandeaAffiliated withGeoForschungsZentrum Potsdam
    • , M. MenvielleAffiliated withCETP/IPSL
    • , A. PaisAffiliated withDepartment of Physics, University of Coimbra
    • , M. PaetzoldAffiliated withUniversität zu Köln
    • , P. ReadAffiliated withAtmospheric, Oceanic and Planetary Physics, University of Oxford
    • , C. SotinAffiliated withLaboratoire de Planétologie et de Géodynamique, Université de Nantes
    • , P. TaritsAffiliated withIUEM, Université de Brest
    • , S. VennerstromAffiliated withDanish National Space Center, Technical University of Denmark
    • , G. Branduardi-RaymontAffiliated withMullard Space Science Laboratory of University College London
    • , G. CremoneseAffiliated withOsservatorio Astronomico di Padova, INAF
    • , J. G. M. MerayoAffiliated withDanish National Space Center, Technical University of Denmark
    • , T. OttAffiliated withSwedish Space Corporation
    • , H. RèmeAffiliated withCESR, Université de Toulouse
    • , J. G. TrotignonAffiliated withLaboratoire de Physique et Chimie de l’Environnement, CNRS
    • , J. E. WalhundAffiliated withSwedish Institute of Space Physics


Mars Environment and Magnetic Orbiter was proposed as an answer to the Cosmic Vision Call of Opportunity as a M-class mission. The MEMO mission is designed to study the strong interconnections between the planetary interior, atmosphere and solar conditions essential to understand planetary evolution, the appearance of life and its sustainability. MEMO provides a high-resolution, complete, mapping of the magnetic field (below an altitude of about 250 km), with an yet unachieved full global coverage. This is combined with an in situ characterization of the high atmosphere and remote sensing of the middle and lower atmospheres, with an unmatched accuracy. These measurements are completed by an improved detection of the gravity field signatures associated with carbon dioxide cycle and to the tidal deformation. In addition the solar wind, solar EUV/UV and energetic particle fluxes are simultaneously and continuously monitored. The challenging scientific objectives of the MEMO mission proposal are fulfilled with the appropriate scientific instruments and orbit strategy. MEMO is composed of a main platform, placed on a elliptical (130 × 1,000 km), non polar (77° inclination) orbit, and of an independent, higher apoapsis (10,000 km) and low periapsis (300 km) micro-satellite. These orbital parameters are designed so that the scientific return of MEMO is maximized, in terms of measurement altitude, local time, season and geographical coverage. MEMO carry several suites of instruments, made of an ‘exospheric-upper atmosphere’ package, a ‘magnetic field’ package, and a ‘low-middle atmosphere’ package. Nominal mission duration is one Martian year.


Space vehicles Instruments Planets and satellites General Solar–terrestrial relations Formation Magnetic fields Solar system Formation