The multi-scale DRACO-LEIA dataset will be characterised by different geometry and viewing angles. Such images will allow assessment of surface geology, not only of the DART impact site, but also of the observed surfaces as a whole. The DART images of Didymos will be pivotal to distinguish possible morphological units of the surface, characterised by different texture, roughness and albedo, and provide boulders and crater size-frequency distributions (SFDs). The DRACO-LEIA dataset will provide a geological map of the illuminated side of Dimorphos body, highlighting texture (including boulders SFDs, spatial densities, presence of dusty deposits and lineaments) that are critical for accurate models of the DART impact. But beyond addressing these DART impact specific issues, the DART-LICIACube data and the resulting geological assessments will be key to update our understanding of the relationships between a primary asteroid and its moon, including how the moon formed (if it is a rubble pile or just a monolithic body). It will also provide a great starting point for understanding the details of the consequences of the DART impact when the ESA HERA mission will visit the Didymos system.
Expected geological assessments at Didymos and Dimorphos from DART and LICIACube
Bertini, I.;Palumbo, P.;
2021-01-01
Abstract
The multi-scale DRACO-LEIA dataset will be characterised by different geometry and viewing angles. Such images will allow assessment of surface geology, not only of the DART impact site, but also of the observed surfaces as a whole. The DART images of Didymos will be pivotal to distinguish possible morphological units of the surface, characterised by different texture, roughness and albedo, and provide boulders and crater size-frequency distributions (SFDs). The DRACO-LEIA dataset will provide a geological map of the illuminated side of Dimorphos body, highlighting texture (including boulders SFDs, spatial densities, presence of dusty deposits and lineaments) that are critical for accurate models of the DART impact. But beyond addressing these DART impact specific issues, the DART-LICIACube data and the resulting geological assessments will be key to update our understanding of the relationships between a primary asteroid and its moon, including how the moon formed (if it is a rubble pile or just a monolithic body). It will also provide a great starting point for understanding the details of the consequences of the DART impact when the ESA HERA mission will visit the Didymos system.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
