Occultation-based Size and Shape of (269) Justitia
Abstract We present results from an occultation of a star by the asteroid (269) Justitia on 2023 August 31 UT using a deployment of 34 stations. Of the deployed stations, 29 were successful in collecting useful data and 19 recorded a positive occultation event. All stations were regularly spaced 2.45 km apart in the cross-track direction to cover ±3 σ of the ephemeris uncertainty with a planning diameter of 59 km. We find that the shape of Justitia is irregular, with large-scale facets and a circular-equivalent radius in the range of 28.5–28.9 km. The inferred albedo is p V = 0.072 ± 0.007 using a rotation-corrected absolute magnitude of H V = 9.72. Astrometry from the occultation is provided.
Authors
- A. Marciniak (ORCID: https://orcid.org/0000-0002-1627-9611)
- Elena David (ORCID: https://orcid.org/0000-0001-5111-7362)
- S. Messner
- Mireille Lefèvre
- Julien Salmon (ORCID: https://orcid.org/0000-0002-5977-3724)
- Julian Hammerl (ORCID: https://orcid.org/0000-0003-1296-7203)
- Michael F. Skrutskie (ORCID: https://orcid.org/0000-0001-8671-5901)
- Noora Alsaeed (ORCID: https://orcid.org/0000-0001-6622-4128)
- John M. Keller (ORCID: https://orcid.org/0000-0002-0915-4861)
- Arunima Prakash (ORCID: https://orcid.org/0000-0003-0793-5266)
- P. O. Hayne (ORCID: https://orcid.org/0000-0003-4399-0449)
- D. Baker (ORCID: https://orcid.org/0009-0001-0141-4016)
- J. L. Jewell (ORCID: https://orcid.org/0000-0001-8991-2599)
- Kai Getrost (ORCID: https://orcid.org/0009-0005-7316-6671)
- P. C. Hinton (ORCID: https://orcid.org/0000-0001-9504-0520)
- Chelsea L. Ferrell (ORCID: https://orcid.org/0000-0002-2530-0427)
- A. Verbiscer (ORCID: https://orcid.org/0000-0002-3323-9304)
- Hugh M. Davidson (ORCID: https://orcid.org/0009-0004-5447-2801)
- Karstein Sørli (ORCID: https://orcid.org/0009-0009-0386-6241)
- Abubakar Sharif (ORCID: https://orcid.org/0000-0002-7602-0740)
- S. F. A. Cartwright (ORCID: https://orcid.org/0000-0002-2751-3573)
- Jacopo Villa (ORCID: https://orcid.org/0009-0009-9491-8317)
- M. W. Buie (ORCID: https://orcid.org/0000-0003-0854-745X)
- Brian A. Keeney (ORCID: https://orcid.org/0000-0003-0797-5313)
- Roxanne L. Kamin
- Arvind Jayashankara Aradhya (ORCID: https://orcid.org/0000-0002-8995-2408)
- V. Nikitin (ORCID: https://orcid.org/0009-0007-7900-4811)
- Ian Faber
- William Goodwyn Ferrell
- Hoor حور AlMazmi المازمي
- Heshani Pieris (ORCID: https://orcid.org/0009-0005-1039-1548)
- Thibaud تيبو Teil تيل
- Fahad فهد Alawadhi العوضي
- Alia علياء Almansoori المنصوري
- Amer Sarhan عامر Alsawwafi سرحان الصوافي
Publication Details
- Journal
- The Planetary Science Journal
- Published
- 2025-03-01
- DOI
- https://doi.org/10.3847/psj/adb28c
- Citations
- 2
- Primary Topic
- Historical Astronomy and Related Studies
- Type
- article
- Field-Weighted Citation Impact
- 2.31
Funders
- UAE Space Agency