A Study of Cybele Asteroids I. Spin Properties of Ten Asteroids

Lagerkvist, C. I.; Erikson, A.; Lahulla, F.; Martino, Mario De; Nathues, A.; Dahlgren, M.

doi:10.1006/icar.2000.6507

Cited by 6 publications

(7 citation statements)

References 8 publications

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“…The LCDB uses a reliability code or quality rating to categorize lightcurves. This system is based on the work of Lagerkvist et al (1989), who defined a reliability code from 1 (tentative result) to 4 (multiple apparition coverage, and pole position reported). Warner et al (2009) suggested that a pole solution did not necessarily reflect the quality of the lightcurve, and thus removed the 4 code.…”

Section: Datasetmentioning

confidence: 99%

The Mission Accessible Near-Earth Objects Survey (Manos): First Photometric Results

Thirouin

Moskovitz

Binzel

et al. 2016

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The Mission Accessible Near-Earth Objects Survey aims to physically characterize sub-km near-Earth objects (NEOs). We report the first photometric results from the survey that began in 2013 August. Photometric observations were performed using 1-4 m class telescopes around the world. We present rotational periods and light curve amplitudes for 86 sub-km NEOs, though in some cases only lower limits are provided. Our main goal is to obtain light curves for small NEOs (typically, sub-km objects) and estimate their rotational periods, light curve amplitudes, and shapes. These properties are used for a statistical study to constrain overall properties of the NEO population. A weak correlation seems to indicate that smaller objects are more spherical than larger ones. We also report seven NEOs that are fully characterized (light curve and visible spectra) as the most suitable candidates for a future human or robotic mission. Viable mission targets are objects fully characterized, with Δv NHATS 12 km s −1 , and a rotational period P>1 hr. Assuming a similar rate of object characterization as reported in this paper, approximately 1230 NEOs need to be characterized in order to find 100 viable mission targets.

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Section: Datasetmentioning

confidence: 99%

The Mission Accessible Near-Earth Objects Survey (Manos): First Photometric Results

Thirouin

Moskovitz

Binzel

et al. 2016

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“…522 Helga: This rather large (diameter 101 km) C-type asteroid of Cybele group was previously observed in 1990 (Lagerkvist et al, 2001) and the period of rotation was determined to be 2.9 or 3.4 h. It is unusual for an asteroid as big as 522 Helga to have such a short period of rotation. Our CCD-observations of this object were carried out during three nights on September-October 2005.…”

Section: Resultsmentioning

confidence: 83%

“…Our CCD-observations of this object were carried out during three nights on September-October 2005. The rotational period is radically different from that obtained in Lagerkvist et al (2001). The composite lightcurve of Helga was plotted using a period of 8:1236AE 0.001 h (Fig.…”

Section: Resultsmentioning

confidence: 86%

“…713 Luscinia: The asteroid 713 Luscinia, which belongs to the Cybele group, was observed on 1992 by Lagerkvist et al (2001) who obtained a rotational period of 8.28 h. The photoelectric observation of this object on October 1995 (Blanco et al, 2000) provided a period of 9.274 h. The object was also observed for three nights on October 1995 with a photoelectric photometer and the 1-m telescope of the Crimean Astrophysics Observatory in Simeiz.…”

Section: Article In Pressmentioning

confidence: 99%

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Photometry of asteroids: Lightcurves of 24 asteroids obtained in 1993–2005

Chiorny

Shevchenko²,

Krugly

et al. 2007

Planetary and Space Science

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“…The main source of data was the data archive of rotation periods of asteroids held as part of the European Asteroid Research Node at Uppsala, version 8 (Lagerkvist & Claesson 1996). In addition, data were taken from Gonano et al (1991), Binzel et al (1992), Xu et al (1995), Di Martino et al (1994), Birlan et al (1996), Wisniewski et al (1997), Blanco, Di Martino & Riccioli (2000) and Lagerkvist et al (2001). The asteroid diameters used were those listed in the Uppsala catalogue.…”

Section: Data Selection and Statistical Modelmentioning

confidence: 99%

Statistical evidence for fast and slow asteroid rotations using Bayesian methods

Donnison¹

2003

Monthly Notices of the Royal Astronomical Society

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Asteroid rotation rates have been analysed by many authors in the past. The statistical results and physical interpretations of the models have varied widely. Bayesian statistics are used here to analyse the rotation rates of 749 asteroids. The larger asteroids are best fitted with a single Maxwellian distribution while the smaller asteroids are fitted by a mixture of Maxwellian distributions. The optimal separation point, determined by the data fit, occurred around 33 km. The smaller asteroids are composed of a mixture of four Maxwellians corresponding to populations of slow rotators, fast rotators and a population identical to the larger asteroids.

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A Study of Cybele Asteroids I. Spin Properties of Ten Asteroids

Cited by 6 publications

References 8 publications

The Mission Accessible Near-Earth Objects Survey (Manos): First Photometric Results

The Mission Accessible Near-Earth Objects Survey (Manos): First Photometric Results

Photometry of asteroids: Lightcurves of 24 asteroids obtained in 1993–2005

Statistical evidence for fast and slow asteroid rotations using Bayesian methods

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