Astronomy
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Item Animated Sequences Showing the Ejecta Produced in the DART Impact of Asteroid (65803) Didymos(2025-01-17) Farnham, TonyThis data collection contains animated sequences showing different aspects of the ejecta that were observed after the Double Asteroid Impact Test (DART) spacecraft crashed into Dimorphos, the moon of asteroid (65803) Didymos on September 26, 2022. The images comprising the sequences were obtained with the LICIACube Unit Key Explorer (LUKE) instrument on board the LICIACube spacecraft that flew by the Didymos system about 3 minutes after the impact event. Although the sequences are comprised of the same observations they are presented in different ways to emphasize various aspects of the ejecta field. These animations are intended as a supplement to the individual LUKE images, to provide insight and to help in the interpretation of the data in support of studies that address spatial and temporal changes in the DART ejecta field. Note that in some of the sequences, black sections may encroach in from the sides. These are gaps in the data where the asteroids moved to the edge of the camera's detector.Item Measurements of boulders ejected in the Double Asteroid Redirection Test (DART) impact(2025-01-17) Farnham, TonyThis data collection contains tables that provide measurements of the positions and brightnesses of meter-sized boulders that were ejected when the Double Asteroid Impact Test (DART) spacecraft crashed into Dimorphos, the moon of asteroid (65803) Didymos on September 26, 2022. The measurements come from the LICIACube Unit Key Explorer (LUKE) instrument on board the LICIACube spacecraft that flew by the Didymos system about 3 minutes after the impact event. The positions table provides the pixel locations of each boulder in the images where it was detected, while the photometry table gives the brightness for each boulder in each of the images where it was measured.Item CN coma rotational sequences for Comet 46P/Wirtanen(2020) Farnham, TonyThis data collection contains animations showing the rotational sequences observed in Comet 46P/Wirtanen during its 2018/2019 apparition. The images were obtained with a narrowband CN filter, and enhanced with three different techniques (see description) to reveal the detailed structure in the coma. The sequences were phased to the periods derived from our rotation analyses.