Matsui SELENE SRR6

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SELENE SCIENTIFIC DATA PRODUCTS AND THEIR APPLICATION TO CHARACTERIZATION OF LUNAR POTENTIAL RESOURCES K. Matsui, R. Nakamura, M.Kato and Y. Takizawa (ISAS/JAXA)

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Contents Introduction of SELENE mission Outline of SELENE Scientific Products The potential of SELENE products for lunar resource exploration in near future Element mapping Mineralogy mapping Polar studies

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SELenological ENgineering Explorer

What’s SELENE?: 

What’s SELENE? Objectives : “Global survey” Study the origin and the evolution of the moon. Explore the possibility of the utilization. ● Orbits : inclination 90 [deg] Main orbiter : 100 x 100 [km] “Vstar” : 100 x 800 [km] “Rstar” : 100 x 2400 [km] The total Mass : 2885[kg] (mission instruments : ~300kg) Mission period: > 1 year Launch : the H-IIA Rocket in FY 2006

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SELENE Mission instruments

Product Distribution : 

Format : including PDS-like labels (T.B.D.) Release: 1 year after the SELENE mission completion through the internet access to the data distribution server at ISAS/JAXA Policy : nonproprietary and free of charge Product Distribution SELENE Science Products Navigation and Ancillary Information The following ancillary data will be opened to the public Satellite attitude data Satellite position data Satellite time information Also, corresponding SPICE kernels (SPK/CK/SCLK) might be provided

SELENE product server web-based interface : 

SELENE product server web-based interface

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Gamma-Ray spectrometer Map A（K,Th,O,Fe,Si <100km/pix） Map B（U,Al,Ca,Mg,Na,Ti） Map C Hydrogen ・Higher energy distribution than LP/GRS X-Ray Spectrometer Mg, Al, Si, Fe Map (<20km/pix) Element distribution SELENE Products Characteristics ・Higher spatial/energy resolution than Apollo/XRS ・Global coverage except poles

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Kobayashi et al. 2004 Energy resolution of GRS flight model

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Predicted GRS spectrum around the poles Berezhnoi et al. 2004 Direct evidence of hydrogen

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Radiance/Reflectance profile (500m/pixel) Mineralogy Mineral distribution SELENE Products Multi-band Imager (415,750,900,950,1000 1050,1250,1650 ) Radiance/Reflectance map (20m/pixel) Fe/Ti map Petrologic types classification Spectral Profiler (0.3~2.5um)

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Laser ALTtimeter Digital elevation map(DEM) of the illuminated areas Images monitoring the seasonal variation of the illumination condition Digital elevation map Mapping polar regions SELENE Products Terrain Camera

Terrain camera (TC): 

Global mapping of the topography by stereo observations Two slant push-broom cameras with B/H~0.57. (panchromatic, 10m/pixel, nominal 35km swarth) Accurate identification of the polar permanently shadowed and illuminated areas with the mission period of one year Terrain camera (TC)

Laser ALTimter (LALT): 

Laser ALTimter (LALT)

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LALT DEM in the PSAs (<100m/pixel) ~10km

Current status and schedule: 

Current status and schedule 2006 The system integration and fitting tests : 2003/04 ~ 2004/03 >> checked the interfaces (mechanical I/F, electrical I/F, EMC, etc.) The qualification test of each component : 2004/04~ The system proto flight test : 2004/autumn~ 2005 2004 2003