The Near-Earth Asteroid (162173) Ryugu has been investigated by the JAXA Hayabusa2 mission. Hayabusa2 successfully returned samples from two sites of Ryugu’s surface to Earth in December 2020. Part of this mission was the deployment of the MASCOT lander which studied Ryugu’s surface in detail. Ryugu is a rubble-pile asteroid covered in boulders and large pebbles. Observations in the visible and near-infrared wavelength range indicate that Ryugu is as dark as any measured meteorite samples and that the closest match is thermally metamorphosed carbonaceous chondrites. In the mid-infrared, the thermal infrared (TIR) instrument and the MASCOT Radiometer (MARA) revealed a high porosity of surface material of 40-50 % on average with individual boulders showing a porosity of up to 90%.


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    Title :

    MASCOT radiometer reveals signs of strong aqueous alteration of (162173) Ryugu's materials


    Contributors:

    Conference:

    2022 ; The Woodlands, Texas


    Publication date :

    2022-03-01


    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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