---
_id: '15197'
abstract:
- lang: eng
  text: Recently, the inner main belt asteroid (152830) Dinkinesh was identified as
    an additional fly- by target for the Lucy mission. The heliocentric orbit and
    approximate absolute magnitude of Dinkinesh are known, but little additional information
    was available prior to its selection as a target. In particular, the lack of color
    spectrophotometry or spectra made it impossible to assign a spectral type to Dinkinesh
    from which its albedo could be estimated. We set out to remedy this knowledge
    gap by obtaining visible wavelength spectra with the Keck telescope on 2022 November
    23 and with Gemini-South on 2022 December 27. The spectra measured with the Keck
    I/Low Resolution Imaging Spectrometer (LRIS) and the Gemini South/Gemini Multi-Object
    Spectrograph South (GMOS-S) are most similar to the average spectrum of S- and
    Sq-type asteroids. The most diagnostic feature is the ≈15 ± 1% silicate absorption
    feature at ≈0.9–1.0 μm. Small S- and Sq-type asteroids have moderately high albedos
    ranging from 0.17 to 0.35. Using this albedo range for Dinkinesh in combination
    with measured absolute magnitude, it is possible to derive an effective diameter
    and surface brightness for this body. The albedo, size and surface brightness
    are important inputs required for planning a successful encounter by the Lucy
    spacecraft.
article_number: '115562'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: B.T.
  full_name: Bolin, B.T.
  last_name: Bolin
- first_name: K.S.
  full_name: Noll, K.S.
  last_name: Noll
- first_name: Ilaria
  full_name: Caiazzo, Ilaria
  id: 8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d
  last_name: Caiazzo
  orcid: 0000-0002-4770-5388
- first_name: C.
  full_name: Fremling, C.
  last_name: Fremling
- first_name: R.P.
  full_name: Binzel, R.P.
  last_name: Binzel
citation:
  ama: Bolin BT, Noll KS, Caiazzo I, Fremling C, Binzel RP. Keck and Gemini spectral
    characterization of Lucy mission fly-by target (152830) Dinkinesh. <i>Icarus</i>.
    2023;400. doi:<a href="https://doi.org/10.1016/j.icarus.2023.115562">10.1016/j.icarus.2023.115562</a>
  apa: Bolin, B. T., Noll, K. S., Caiazzo, I., Fremling, C., &#38; Binzel, R. P. (2023).
    Keck and Gemini spectral characterization of Lucy mission fly-by target (152830)
    Dinkinesh. <i>Icarus</i>. Elsevier. <a href="https://doi.org/10.1016/j.icarus.2023.115562">https://doi.org/10.1016/j.icarus.2023.115562</a>
  chicago: Bolin, B.T., K.S. Noll, Ilaria Caiazzo, C. Fremling, and R.P. Binzel. “Keck
    and Gemini Spectral Characterization of Lucy Mission Fly-by Target (152830) Dinkinesh.”
    <i>Icarus</i>. Elsevier, 2023. <a href="https://doi.org/10.1016/j.icarus.2023.115562">https://doi.org/10.1016/j.icarus.2023.115562</a>.
  ieee: B. T. Bolin, K. S. Noll, I. Caiazzo, C. Fremling, and R. P. Binzel, “Keck
    and Gemini spectral characterization of Lucy mission fly-by target (152830) Dinkinesh,”
    <i>Icarus</i>, vol. 400. Elsevier, 2023.
  ista: Bolin BT, Noll KS, Caiazzo I, Fremling C, Binzel RP. 2023. Keck and Gemini
    spectral characterization of Lucy mission fly-by target (152830) Dinkinesh. Icarus.
    400, 115562.
  mla: Bolin, B. T., et al. “Keck and Gemini Spectral Characterization of Lucy Mission
    Fly-by Target (152830) Dinkinesh.” <i>Icarus</i>, vol. 400, 115562, Elsevier,
    2023, doi:<a href="https://doi.org/10.1016/j.icarus.2023.115562">10.1016/j.icarus.2023.115562</a>.
  short: B.T. Bolin, K.S. Noll, I. Caiazzo, C. Fremling, R.P. Binzel, Icarus 400 (2023).
date_created: 2024-03-26T09:47:44Z
date_published: 2023-04-07T00:00:00Z
date_updated: 2024-04-02T07:02:28Z
day: '07'
doi: 10.1016/j.icarus.2023.115562
extern: '1'
external_id:
  arxiv:
  - '2303.08130'
fulldoi: https://doi.org/10.1016/j.icarus.2023.115562
intvolume: '       400'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/2303.08130
month: '04'
oa: 1
oa_version: Preprint
publication: Icarus
publication_identifier:
  issn:
  - 0019-1035
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Keck and Gemini spectral characterization of Lucy mission fly-by target (152830)
  Dinkinesh
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 400
year: '2023'
...