The Double Asteroid Redirection Test (DART) impacted Dimorphos on September 26, 2022. LICIACube, a CubeSat deployed 15 days prior, observed the event from 71 seconds before impact to 320 seconds after. The ejecta plume was a cone with a 140 ± 4-degree aperture angle. The plume's inner region was blue, reddening with distance. The ejecta exhibited complex structure with filaments, dust, and boulders, with velocities ranging from tens of meters per second to about 500 meters per second. LICIACube's images provide unique insights into the DART impact's effects.
Publisher
Nature
Published On
Mar 21, 2024
Authors
E. Dotto, J. D. P. Deshapriya, I. Gai, P. H. Hasselmann, E. Mazzotta Epifani, G. Poggiali, A. Rossi, G. Zanotti, A. Zinzi, I. Bertini, J. R. Brucato, M. Dall’Ora, V. Della Corte, S. L. Ivanovski, A. Lucchetti, M. Pajola, M. Amoroso, O. Barnouin, A. Campo Bagatin, A. Capannolo, S. Caporali, M. Ceresoli, N. L. Chabot, A. F. Cheng, G. Cremonese, E. G. Fahnestock, T. L. Farnham, F. Ferrari, L. Gomez Casajus, E. Gramigna, M. Hirabayashi, S. Ieva, G. Impresario, M. Jutzi, R. Lasagni Manghi, M. Lavagna, J.-Y. Li, M. Lombardo, D. Modenini, P. Palumbo, D. Perna, S. Pirrotta, S. D. Raducan, D. C. Richardson, A. S. Rivkin, A. M. Stickle, J. M. Sunshine, P. Tortora, F. Tusberti, M. Zannoni
Tags
Double Asteroid Redirection Test
DART
Dimorphos
LICIACube
ejecta plume
impact observation
planetary defense
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