UE 4 – Planetary surfaces and related space instrumentation

The purpose of this module is to address the study of planetary surfaces from space observations acquire by orbital and in situ space platforms. The constraints related to space (resources, operations, etc.) will be discussed and we will review the different techniques used to constrain the mineralogical, chemical and elementary characterization of surfaces.

The course will provide the main concepts concerning the radiative transfer in a compact media allowing the interpretation of remote sensing data. The presentation of orbital or in-situ observation techniques will be illustrated by examples of instruments on board current and past space missions (particularly Martian missions and small bodies), with possible applications to terrestrial remote sensing, particularly with regard to radar technology. Emphasis will be placed on the physics of the processes involved in the measurement techniques, on the notion of the chain of instrumental development – calibration – operation – observations – data analysis, highlighting the complementary between in-situ and remote sensing, and finally on the joint analysis of imagery data and the use of reference databases (observational or laboratory).

1 – Review of techniques and instrumental limitations linked to spatial constraints

2 – Mineralogical and Chemical Characterization of Planetary Surfaces
- Optical & infrared spectroscopy
- Gamma & Neutron Spectroscopy
- Radar Sounding

3 – Planetary photometry. Radiative transfer in compact media

4 – Examples of spectral analyses, mergin of remote sensing data and in situ/remote sensing complementary

Person in charge:

Francois Poulet, IAS (Institut d’Astrophysique Spatiale), Bâtiment 121, Université Paris-Saclay, F 91405-ORSAY Cedex, Tel. 33+1 69 85 85 82, Fax. 33+1 69 85 86 75, E-mail : francois.poulet[@robas]ias.u-psud.fr