The Mission Accessible Near-Earth Objects Survey (MANOS): first photometric results

Abstract

The Mission Accessible Near-Earth Objects Survey (MANOS) aims to physically characterize sub-km Near-Earth Objects (NEOs). We report first photometric results from the survey which began in August, 2013. Photometric observations were performed using 1 m to 4 m class telescopes around the world. We present rotational periods and lightcurve amplitudes for 86 sub-km NEOs, though in some cases, only lower limits are provided. Our main goal is to obtain lightcurves for small NEOs (typically, sub-km objects) and estimate their rotational periods, lightcurve amplitudes, and shapes. These properties are used for statistical study to constrain overall properties of the NEO population. A weak correlation seems to indicate that smaller objects are more spherical than the larger ones. We also report 7 NEOs that are fully characterized (lightcurve and visible spectra) as the most suitable candidates for a future human or robotic mission. Viable mission targets are objects fully characterized, with a Delta_v(NHATS) <12 km s^-1, and a rotational period P>1h. Assuming a similar rate of object characterization as reported in this paper, approximately 1,230 NEOs need to be characterized in order to find 100 viable mission targets.

arXiv commentAccepted for publication in The Astronomical Journal

References in corpus (13)

• Density of asteroids
• Scaling forces to asteroid surfaces: The role of cohesion
• The Strength of Regolith and Rubble Pile Asteroids
• Tidal Evolution of Rubble Piles
• Comparison of Asteroids Observed in the SDSS with a Catalog of Known Asteroids
• Physical Characterization of Warm Spitzer-observed Near-Earth Objects
• Constraints on the Physical Properties of Main Belt Comet P/2013 R3 from its Breakup Event
• Characterizing Subpopulations within the Near Earth Objects with NEOWISE: Preliminary Results
• A 2 km-size asteroid challenging the rubble-pile spin barrier - a case for cohesion
• Photometry and Spin Rate Distribution of Small-Sized Main Belt Asteroids
• On the detectability of lightcurves of Kuiper Belt objects
• The Need for Speed in Near-Earth Asteroid Characterization
• On the rotation rates and axis ratios of the smallest known near-Earth asteroids---the archetypes of the Asteroid Redirect Mission targets

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