The NASA/DART mission successfully accomplished the first planetary defense test on the 26th September 2022 when it impacted Dimorphos, the secondary object of the (65803) Didymos binary system. DART demonstrated the capabilities of the kinetic redirection technique. Dimorphos was hit by DART with velocity of 6.1 km/s, which produced a complex ejecta plume composed of filamentary streams extending roughly 10 km from the surface just hundreds of seconds after impact. Before the impact, DRACO imager onboard DART provided near-real-time images during the fast approach phase, unveiling the surface of Dimorphos at very small spatial resolution in a single phase angle of 59°. The first seconds to minutes into the event were witnessed by the LEIA and LUKE instruments of the Italian Space Agency CubeSat LICIACube . Both cameras captured hundreds of images during the fly-by maneuver, with the closest approach of about 57 km from Dimorphos. The disk-resolved data obtained has the largest phase angle coverage, ranging from 43° to 118°.
Albedo properties of Didymos and Dimorphos surface and ejecta plume through DART and LICIACube imaging
A Rossi;
2023
Abstract
The NASA/DART mission successfully accomplished the first planetary defense test on the 26th September 2022 when it impacted Dimorphos, the secondary object of the (65803) Didymos binary system. DART demonstrated the capabilities of the kinetic redirection technique. Dimorphos was hit by DART with velocity of 6.1 km/s, which produced a complex ejecta plume composed of filamentary streams extending roughly 10 km from the surface just hundreds of seconds after impact. Before the impact, DRACO imager onboard DART provided near-real-time images during the fast approach phase, unveiling the surface of Dimorphos at very small spatial resolution in a single phase angle of 59°. The first seconds to minutes into the event were witnessed by the LEIA and LUKE instruments of the Italian Space Agency CubeSat LICIACube . Both cameras captured hundreds of images during the fly-by maneuver, with the closest approach of about 57 km from Dimorphos. The disk-resolved data obtained has the largest phase angle coverage, ranging from 43° to 118°.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
