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AOGS Singapore 20.-24. June 2005 Paper ID: 58-PS-A0320 BepiColombo – Mission to Mercury System Update MPO Scientific Aspects.

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Presentation on theme: "AOGS Singapore 20.-24. June 2005 Paper ID: 58-PS-A0320 BepiColombo – Mission to Mercury System Update MPO Scientific Aspects."— Presentation transcript:

1 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 BepiColombo – Mission to Mercury System Update MPO Scientific Aspects & Rita Schulz Johannes Benkhoff

2 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 BepiColombo Elements

3 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 Mercury Planetary Orbiter Mercury Magnetospheric Orbiter MMO orbit optimized for study of magnetosphere MPO orbit optimized for study of planet itself

4 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 MMO: 400 x 11,800 km 9.3 hours Direction of Sun at perihelion MPO: Mercury Orbits

5 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 MPO Instruments (Selected by SPC; Nov. 2004) & Scientific Objectives Origin of Mercury Evolution of Mercury Nature of surface modifications on Mercury Structure and variability of the magnetosphere of Mercury

6 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 BELA BepiColombo Laser Altimeter Science Goals Figure of the Planet Interior Structure and Composition of Mercury Formation and Evolution of the Planet CoPI ’ s: N. Thomas / T. Spohn

7 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 MERTIS MERCURY (RADIOMETER and) THERMAL INFRARED SPECTROMETER Science goals: – to study the surface composition of Mercury – to identify the key rock-forming minerals – to map the surface mineralogy – to measure surface temperature and thermal inertia PI: E.K. Jessberger

8 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 Mercury Imaging X-ray Spectrometer (MIXS) PI: S. Dunkin To produce global elemental maps of key rock- forming elements To perform high spatial resolution mapping of these elemental abundances where solar conditions permit To confirm that the auroral zone is an intense source of continuum and line X-rays

9 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 SIXS (Solar Intensity X-ray and particle Spectrometer) PI: J. Houvelin Scientific Objectives  accurate physical estimates of solar X-ray and particle irradiation at the surface of Mercury.  Data provided by SIXS are mandatory for a valid fluorescence analysis of MIXS spectra.

10 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 ISA (ITALIAN SPRING ACCELEROMETER) PI: V. Iafolla AN ACCELEROMETER TO MEASURE THE INERTIAL ACCELERATIONS ACTING ON THE MPO the global gravity field of Mercury and its temporal variations the local gravity anomalies the rotation state of Mercury the orbit of the Mercury center–of–mass around the Sun

11 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 MERMAG Magnetic Field Investigation PI: A. Balogh The primary objective to provide magnetic field measurements that will lead to the detailed description of Mercury’s planetary magnetic field, and thereby constrain models of the evolution and current state of the planetary interior. The secondary objective to contribute to the study of the interaction of the solar wind with the Hermean magnetic field and the planet itself, the formation and dynamics of the magnetosphere as well as to the processes that control the interaction of the magnetosphere with the planet.

12 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 PHEBUS: A FUV-EUV Spectrometer PI: E. Chassefiere 1) Vertical/ geographic/ seasonal mapping of already detected elements (H, He, O, Na, K, Ca). 2) Search for still non-detected compounds (Si, Mg, Al, Fe, S, C, N, OH, H 2 ), and vertical/ geographic/ seasonal mapping. 3) Search for noble gases other than He (Ne, Ar, Xe, Kr) and mapping/ monitoring if possible. 4) Search for ion species (He +, Na +, O +, Mg +, Al +, Ca +, C +, N +, S +, …) and mapping/ monitoring if possible. 5) Measurement of surface reflectance at nm in polar craters in order to search for surface ice layers.

13 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 Spectrometer and Imagers for MPO BepiColombo Integrated Observatory SYStem SIMBIO- SYS SIMBIO-SYS package: It incorporates capabilities to perform: medium space resolution global mapping in stereo and colour imaging using two pan- chromatic and 3 broad-band filters Stereo Channel STC; high spatial resolution imaging in a pan-chromatic and 3 broad-band filters High Resolution Imaging Channel HRIC; imaging spectroscopy in the spectral range 400  2000 nm Visible Infrared Hyperspectral Imager VIHI. Classification of Mercury surface features Mercury surface composition PI: E. Flamini

14 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 SIMBIO-SYS Science -Surface geology: stratigraphy, geomorphology – Volcanism: lava plain emplacement, volcanoes identification -Global tectonics: structural geology, mechanical properties of lithosphere -Surface age: crater population and morphometry, degradation processes -Surface composition: maturity and crustal differentiation, weathering, rock forming minerals abundance determination -Geophysics: libration measurements, internal planet dynamics

15 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 MORE Mercury Orbiter Radio-science Experiment Scientific Objectives Determine the gravity field of Mercury Determine the size and physical state of its core Provide crucial experimental constraints to models of Mercury’s internal structure Test theories of gravity Measure the gravitational oblateness of the Sun Test and characterize the most advanced interplanetary tracking system ever built Assess the performances of the novel tracking system in precise orbit determination and space navigation. PI: L. Iess

16 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 SERENA Search for Exospheric Refilling and Emitted Natural Abundances PI: S. OrsiniUnits: ELENA: Emitted Low-Energy Neutral Atoms STROFIO: Start from a ROtating FIeld spectrOmeter MIPA: Miniature Ion Precipitation Analyser PICAM: Planetary Ion CAMera

17 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 Mercury Gamma-ray and Neutron Spectrometer MGNS PI: I.G.Mitrofanov PI: I.G.Mitrofanov Scientific goals: to determine the elemental compositions by the measurements of nuclear lines of major soil-composing elements to determine the elemental compositions by the measurements of the leakage flux of neutrons and of the lines of natural radioactive elements to determine the regional distribution of volatile depositions on the polar areas of Mercury which are permanently shadowed from the Sun, and to provide a map of column density of this depositions

18 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 MGNS Backup: MANGA Mercury composition Analysis by Neutron and Gamma-ray spectoscopy MGNS Backup: MANGA Mercury composition Analysis by Neutron and Gamma-ray spectoscopy PI: C. d'Uston

19 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 MPO Payload Selection by SPC (Nov. 2004) BELALaser AltimeterN. Thomas / T. Spohn ISARadio Science V. Iafolla Accelerometer MERMAGMagnetometerA. Balogh MERTISIR SpectrometerE.K. Jessberger MGNS or Gamma Ray andI. Mitrofanov MANGA Neutron SpectrometerC. d'Uston MIXS /X-ray Spectrometer S. Dunkin SIXSSolar MonitorJ. Houvelin MORERadio Science L. Iess Ka-band Transponder PHEBUSUV SpectrometerE. Chassefiere SERENANeutral Particle Analyser/S. Orsini ( Elena, MIPA, Ion Spectrometers PICAM, Strofio ) SIMBIO-SYSHigh Res.+ Stereo Cameras E. Flamini (HIRC, STC, VIHI)visual and NIR Spectrometer

20 AOGS Singapore June 2005 Paper ID: 58-PS-A0320 Instruments Magnetosphere High Resolution Colour Camera Stereo Camera Vis-Near-IR Mapping Spectrom. TIR Map. Spectrom/Radiometer X-ray Spectrom/Solar Monitor γ-Ray Neutron Spectrometer Ultraviolet Spectrometer Neutral & Ion Particle Analyser Laser Altimeter Radio Science Experiment Magnetometer plus MMO Payload Structure, dynamics Morphology State of Core Composition Surface Interior Exosphere Temperature Topography Composition Core/Mantle Composition Magnetic Field Dynamics Surface Release Source/Sink Balance Composition Interactions Science Topics MPO

21 AOGS Singapore June 2005 Paper ID: 58-PS-A0320


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