2026-06-07T15:52:29Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/1049122025-03-18T12:57:25Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author Zinzi, Angelo author Hasselmann, P. H. A. author Della Corte, V. author Deshapriya, J. D. P. author Gai, I. author Lucchetti, A. author Pajola, M. author Rossi, A. author Martínez Parro, Laura author Zanotti, G. 2024-06-13T15:35:07Z 2024-06-13T15:35:07Z 2024-04 Zinzi, Angelo, et al. «VADER: Probing the Dark Side of Dimorphos with LICIACube LUKE». The Planetary Science Journal, vol. 5, n.o 4, abril de 2024, p. 103, https://doi.org/10.3847/PSJ/ad3826 10.3847/PSJ/ad3826 https://hdl.handle.net/20.500.14352/104912 2632-3338 https://doi.org/10.3847/PSJ/ad3826 https://iopscience.iop.org/article/10.3847/PSJ/ad3826 The ASI cubesat LICIACube has been part of the first planetary defense mission DART, having among its scopes to complement the DRACO images to better constrain the Dimorphos shape. LICIACube had two different cameras, LEIA and LUKE, and to accomplish its goal, it exploited the unique possibility of acquiring images of the Dimorphos hemisphere not seen by DART from a vantage point of view, in both time and space. This work is indeed aimed at constraining the tridimensional shape of Dimorphos, starting from both LUKE images of the nonimpacted hemisphere of Dimorphos and the results obtained by DART looking at the impacted hemisphere. To this aim, we developed a semiautomatic Computer Vision algorithm, named VADER, able to identify objects of interest on the basis of physical characteristics, subsequently used as input to retrieve the shape of the ellipse projected in the LUKE images analyzed. Thanks to this shape, we then extracted information about the Dimorphos ellipsoid by applying a series of quantitative geometric considerations. Although the solution space coming from this analysis includes the triaxial ellipsoid found by using DART images, we cannot discard the possibility that Dimorphos has a more elongated shape, more similar to what is expected from previous theories and observations. The result of our work seems therefore to emphasize the unique value of the LICIACube mission and its images, making even clearer the need of having different points of view to accurately define the shape of an asteroid. eng Attribution 4.0 International VADER: Probing the Dark Side of Dimorphos with LICIACube LUKE journal article 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URL https://docta.ucm.es/bitstreams/b1b41321-7893-4584-a838-37b3ddd225cf/download File MD5 d05519d4efba46c3c4d5d3758cc28985 1045793 application/pdf VADER Probing the Dark Side of Dimorphos with LICIACube LUKE.pdf URL https://docta.ucm.es/bitstreams/fd8eff57-68b9-4e5d-8d72-7eaa968eb66f/download File MD5 8321d9073934465fbbdd7201d19256f8 47590 text/plain VADER Probing the Dark Side of Dimorphos with LICIACube LUKE.pdf.txt