Kuppers, M., Mottola, S., Lowry, S.C., A'Hearn, M.F., Barbieri, C., Barucci, M.A., Fornasier, S., Groussin, O., Gutierrez, P., Hviid, S.F., and others. (2007) Determination of the light curve of the Rosetta target asteroid (2867) Steins by the OSIRIS cameras onboard Rosetta. Astronomy and Astrophysics, 462 (1). L13-L16. ISSN 0004-6361. E-ISSN 1432-0746. (doi:10.1051/0004-6361:20066694) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:52310)
The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
Official URL: http://dx.doi.org/10.1051/0004-6361:20066694 |
Abstract
Context: In 2004 asteroid (2867) Steins has been selected as a flyby target for the Rosetta mission. Determination of its spin period and the orientation of its rotation axis are essential for optimization of the flyby planning. Aims: Measurement of the rotation period and light curve of asteroid (2867) Steins at a phase angle larger than achievable from ground based observations, providing a high quality data set to contribute to the determination of the orientation of the spin axis and of the pole direction. Methods: On March 11, 2006, asteroid (2867) Steins was observed continuously for 24 h with the scientific camera system OSIRIS onboard Rosetta. The phase angle was 41.7 degrees, larger than the maximum phase angle of 30 degrees when Steins is observed from Earth. A total of 238 images, covering four rotation periods without interruption, were acquired. Results: The light curve of (2867) Steins is double peaked with an amplitude of ~0.23 mag. The rotation period is 6.052 ± 0.007 h. The continuous observations over four rotation periods exclude the possibility of period ambiguities. There is no indication of deviation from a principal axis rotation state. Assuming a slope parameter of G = 0.15, the absolute visual magnitude of Steins is 13.05 ± 0.03. © ESO 2007.
Item Type: | Article |
---|---|
DOI/Identification number: | 10.1051/0004-6361:20066694 |
Additional information: | Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Astron. Astrophys. [Field not mapped to EPrints] AD - Max-Planck-Institut für Sonnensystemforschung, Germany [Field not mapped to EPrints] AD - Institute of Planetary Research, DLR, Germany [Field not mapped to EPrints] AD - Astrophysics Research Centre, Queen's University Belfast, United Kingdom [Field not mapped to EPrints] AD - Department of Astronomy, University of Maryland, United States [Field not mapped to EPrints] AD - Dipartimento di Astronomia, CISAS, Università di Padova, Italy [Field not mapped to EPrints] AD - University of Paris 7, France [Field not mapped to EPrints] AD - Laboratoire d'Astrophysique de Marseille, France [Field not mapped to EPrints] AD - Instituto de AstrofÃsica de AndalucÃa, CSIC, Spain [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints] |
Uncontrolled keywords: | Minor planets, asteroids, Techniques: photometric, Airborne telescopes, Data structures, Imaging techniques, Phase meters, Photometry, Planets, Space research, Asteroids, Light curve, Minor planets, Cameras |
Subjects: | Q Science > QB Astronomy |
Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
Depositing User: | Stephen Lowry |
Date Deposited: | 08 Dec 2015 23:10 UTC |
Last Modified: | 16 Nov 2021 10:21 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/52310 (The current URI for this page, for reference purposes) |
- Export to:
- RefWorks
- EPrints3 XML
- BibTeX
- CSV
- Depositors only (login required):