1 / 17

Imaging Mercury surface

Imaging Mercury surface . The SIMBIO-SYS Experiment for the BepiColombo Mission. Enrico Flamini – Roma 27-2-07. SIMBIO-SYS.

zander
Download Presentation

Imaging Mercury surface

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Imaging Mercury surface The SIMBIO-SYS Experiment for the BepiColombo Mission Enrico Flamini – Roma 27-2-07

  2. SIMBIO-SYS • SIMBIO-SYS is an integrated package for the imaging and spectroscopic investigation of the Hermean surface selected by ESA as part of the European mission to Mercury BepiColombo .

  3. 100 km 15 km Upper crust evolution and surface processes SCIENCE: Geology and Geomorphology • Geomorphological characterization of the highly cratered units (3D) • Origin, limit and areal extension of intracrater, hummocky and smooth plains; • Stratigraphic relationships between highlands and plains (3D) • Presence of layered units (HR) • Characterization of polar deposits; • Identification of aeolian deposits; • Impact crater morphologies and degradation level (3D) • Ejecta distribution and modification

  4. Interior dynamics and crustal differentiation processes SCIENCE: Volcanism Styles and Deposits • Origin of the smooth plain materials (volcanic or lobate crater ejecta?); (3D + HR + IR) • Identification of volcanic edifices; (3D) • Identification of volcanic deposits (i.e. lava flow vs. ejecta blanket); (3D + HR + IR) • Definition of the type of volcanism (i.e. fissural, explosive)

  5. Crustal dynamics 40 km Discovery Scarp Tectonics Evolution • Morphological characterization of mercurian large lobate scarps; (3D) • Identification and classification of smaller tectonic features; (3D) • Observation of cross-cutting relationships to infer the relative age of tectonic events; (HR) • Mapping the distribution of tectonic features

  6. 30 km Surface Age • Observation of impact craters with diameter > 0.5 km; • Mapping the different crater distribution; • Comparison between age and the main geological units of highlands and plains • This would led to the definition of the impact flux in the inner Solar System Temporal occurrence of geologic processes

  7. Surface Composition and Weathering • Characterization of the bulk surface composition; • Measure the FeO and TiO2 abundances; • Identification of recent volcanic deposits • Different composition of hermean plains respect to highlands • Identification of weathering products • Effect of surface weathering as function of the surface exposure (age) Interior differentiation, alteration processes

  8. Radar bright spots Water in coldest sites Characterisation of Polar deposits • Characterization of the polar deposits composition; • Search for similar deposits in permanently shadowed areas of large impact crater.

  9. SIMBIO-SYS ScienceSummary • 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

  10. SIMBIO-SYS Configuration • SYMBIO-SYS, realised for the Italian Space Agency by Galileo Avionica with the partnership of France and Suisse, 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. HRIC STC VIHI

  11. High spatial Resolution Imaging Channel(HRIC) • Main Objectives • to provide images at ground pixel size of 5 m /pxl @ 400 km* • to provide high spatial coverage if about 20% Mercury surface • to provide high spatial resolution images in up to 4 different bands *The proposed thermal design of interfaces with the S/C could lead to the reduction of the optics aperture and to a resolution of 10 m @ 400 km.

  12. Saptial resolution: HRIC

  13. Ground track and Coverage: HRIC Peri-Herm HRIC FOV tracks for two consecutive (red and blue) orbits of the spacecraft. Peri-herm side (adjacent tracks do not overlap at equator).

  14. Ground track and Coverage: HRIC Apo-Herm HRIC FOV tracks for two consecutive (red and blue) orbits of the spacecraft. Apo-herm side (adjacent tracks overlap).

  15. Stereo Channel (STC) • Main Objectives • Global mapping in stereo mode at spatial resolution of < 110 m • Global mapping in three colours at spatial resolution of < 110 m

  16. Visible Infrared Hyperspectral Imager channel (VIHI) • Main Objectives • To produce global mineralogical mapping at spatial resolution <400 m • To identify mineralogical species at a 5-10% confidence level • To correlate surface composition and surface features at a scale of 400m globally and up to 100m in selected places (> 5% surfacecoverage)

  17. Optics Thermoelastic stability Still under study: optomechanical tollerances not yet fixed. The following values present have to be considered as reference. APE Absolute Pointing error; The in flight calibration it is of paramount importance for the removal of thermomechanical biases!

More Related