EPSC Abstracts
Vol. 18, EPSC-DPS2025-896, 2025, updated on 09 Jul 2025
https://doi.org/10.5194/epsc-dps2025-896
EPSC-DPS Joint Meeting 2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
 Albedo Features on (52246) Donaldjohanson, from Lucy L’LORRI Observations
John Spencer1, Anne Verbiscer2, Jessica Sunshine3, Tod Lauer4, Harold Levison1, Simone Marchi1, Keith Noll5, Neil Dello Russo6, Harold Weaver, Olivier Barnouin6, and the Lucy Mission Team*
John Spencer et al.
  • 1Southwest Research Institute, Boulder, USA (john.spencer@swri.org)
  • 2University of Virginia, Charlottesville, USA
  • 3University of Maryland, College Park, USA
  • 4NSF’s NOIRLab, Tucson, USA
  • 5NASA-GSFC, Greenbelt, USA
  • 6JHU-APL, Laurel, USA
  • *A full list of authors appears at the end of the abstract

During its April 20th 2025 flyby of the approximately 8 km long C-type asteroid (52246) Donaldjohanson, the Lucy spacecraft obtained several hundred spatially resolved images of the target with the panchromatic Lucy Long Range Reconnaissance Imager (L’LORRI) camera, over a wide range of solar phase angles from 1 degree to 52 degrees.  Lucy passed through the opposition point at a range of 3,700 km, 4.5 minutes before closest approach, when the image scale was 20 meters/pixel.  We will report on the mapping and phase behavior of surface albedo features, and determination of their relationship to surface geological features, enabled by the large phase angle range of the L’LORRI dataset.  

Acknowledgement: The Lucy mission is funded through the NASA Discovery program on contract No. NNM16AA08C

Lucy Mission Team:

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How to cite: Spencer, J., Verbiscer, A., Sunshine, J., Lauer, T., Levison, H., Marchi, S., Noll, K., Dello Russo, N., Weaver, H., and Barnouin, O. and the Lucy Mission Team:  Albedo Features on (52246) Donaldjohanson, from Lucy L’LORRI Observations, EPSC-DPS Joint Meeting 2025, Helsinki, Finland, 7–12 Sep 2025, EPSC-DPS2025-896, https://doi.org/10.5194/epsc-dps2025-896, 2025.