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Information about the spin state of asteroids is important for our understanding of the dynamical processes affecting them. However, spin properties of asteroids are known for only a small fraction of the whole population. To enlarge the…

Earth and Planetary Astrophysics · Physics 2018-09-19 Josef Durech , Josef Hanus , Victor Ali-Lagoa

We report Markov chain Monte Carlo fits of the thermophysical model of Wright (2007) to the fluxes of 10 asteroids which have been observed by both WISE and NEOWISE. This model is especially useful when one has observations of an asteroid…

Earth and Planetary Astrophysics · Physics 2015-10-01 Seth C. Koren , Edward L. Wright , A. Mainzer

While proper orbital elements are currently available for more than 1 million asteroids, taxonomical information is still lagging behind. Surveys like SDSS-MOC4 provided preliminary information for more than 100,000 objects, but many…

Earth and Planetary Astrophysics · Physics 2023-11-08 Valerio Carruba , Júlio I. B. Camargo , Safwan Aljbaae , 51 co-authors , DES Collaboration

We extend the most recent orbital and absolute magnitude Near Earth Object (NEO) model (Granvik et al., 2018) to provide a statistical description of NEO geometric albedos. Our model is calibrated on NEOWISE albedo data for the NEO…

We present the results of a project to detect small (~1 km) main-belt asteroids with the 3.6 meter Canada-France-Hawaii Telescope (CFHT). We observed in 2 filters (MegaPrime g' and r') in order to compare the results in each band. Owing to…

Astrophysics · Physics 2008-11-26 Paul Wiegert , David Balam , Andrea Moss , Christian Veillet , Martin Connors , Ian Shelton

Thermal-infrared measurements of asteroids are crucial for deriving the objects' sizes, albedos, and also the thermophysical properties of the surface material. Depending on the available data, a range of simple to complex thermal models…

Earth and Planetary Astrophysics · Physics 2021-06-02 T. Müller , M. Burgdorf , V. Ali-Lagoa , S. A. Buehler , M. Prange

There are only a few known main belt (MB) asteroid families with ages greater than 2 Gyr (Bro\v{z} et al. 2013, Spoto et al. 2015). Estimates based on the family producing collision rate suggest that the lack of >2 Gyr-old families may be…

Earth and Planetary Astrophysics · Physics 2016-11-15 Bryce T. Bolin , Marco Delbo , Alessandro Morbidelli , Kevin J. Walsh

Large main-belt asteroids (diameter $D \gtrsim 120\ \mathrm{km}$) exhibit a surface composition gradient as a function of heliocentric distance, ranging from anhydrous bodies to those rich in hydrated and, possibly, ammoniated materials.…

Earth and Planetary Astrophysics · Physics 2026-02-23 Jinfei Yu , Hiroyuki Kurokawa , Tetsuo Taki

The \emph{Wide-field Infrared Survey Explorer} has surveyed the entire sky at four infrared wavelengths with greatly improved sensitivity and spatial resolution compared to its predecessors, the \emph{Infrared Astronomical Satellite} and…

We measure the mid-plane of the main asteroid belt by using the observational data of a nearly complete and unbiased sample of asteroids, and find that it has inclination $\bar{I}=0.93\pm0.04$ degrees and longitude of ascending node…

Earth and Planetary Astrophysics · Physics 2018-03-21 Saverio Cambioni , Renu Malhotra

We performed a statistical analysis of the astrometric errors for the major asteroid surveys. We analyzed the astrometric residuals as a function of observation epoch, observed brightness and rate of motion, finding that astrometric errors…

Earth and Planetary Astrophysics · Physics 2017-06-28 Peter Vereš , Davide Farnocchia , Steven R. Chesley , Alan B. Chamberlin

We have carried out simulations to predict the performance of a new space-based telescopic survey operating at thermal infrared wavelengths that seeks to discover and characterize a large fraction of the potentially hazardous near-Earth…

Earth and Planetary Astrophysics · Physics 2015-06-23 A. Mainzer , T. Grav , J. Bauer , T. Conrow , R. M. Cutri , J. Dailey , J. Fowler , J. Giorgini , T. Jarrett , J. Masiero , T. Spahr , T. Statler , E. L. Wright

Asteroid modeling efforts in the last decade resulted in a comprehensive dataset of almost 400 convex shape models and their rotation states. This amount already provided a deep insight into physical properties of main-belt asteroids or…

Earth and Planetary Astrophysics · Physics 2016-08-07 J. Hanuš , J. Ďurech , D. A. Oszkiewicz , R. Behrend , B. Carry , M. Delbo' , O. Adam , V. Afonina , R. Anquetin , P. Antonini , L. Arnold , M. Audejean , P. Aurard , M. Bachschmidt , B. Badue , E. Barbotin , P. Barroy , P. Baudouin , L. Berard , N. Berger , L. Bernasconi , J-G. Bosch , S. Bouley , I. Bozhinova , J. Brinsfield , L. Brunetto , G. Canaud , J. Caron , F. Carrier , G. Casalnuovo , S. Casulli , M. Cerda , L. Chalamet , S. Charbonnel , B. Chinaglia , A. Cikota , F. Colas , J-F. Coliac , A. Collet , J. Coloma , M. Conjat , E. Conseil , R. Costa , R. Crippa , M. Cristofanelli , Y. Damerdji , A. Debackere , A. Decock , Q. Déhais , T. Déléage , S. Delmelle , C. Demeautis , M. Dróżdż , G. Dubos , T. Dulcamara , M. Dumont , R. Durkee , R. Dymock , A. Escalante del Valle , N. Esseiva , R. Esseiva , M. Esteban , T. Fauchez , M. Fauerbach , M. Fauvaud , S. Fauvaud , E. Forné , C. Fournel , D. Fradet , J. Garlitz , O. Gerteis , C. Gillier , M. Gillon , R. Giraud , J-P. Godard , R. Goncalves , H. Hamanowa , H. Hamanowa , K. Hay , S. Hellmich , S. Heterier , D. Higgins , R. Hirsch , G. Hodosan , M. Hren , A. Hygate , N. Innocent , H. Jacquinot , S. Jawahar , E. Jehin , L. Jerosimic , A. Klotz , W. Koff , P. Korlevic , E. Kosturkiewicz , P. Krafft , Y. Krugly , F. Kugel , O. Labrevoir , J. Lecacheux , M. Lehký , A. Leroy , B. Lesquerbault , M. J. Lopez-Gonzales , M. Lutz , B. Mallecot , J. Manfroid , F. Manzini , A. Marciniak , A. Martin , B. Modave , R. Montaigut , J. Montier , E. Morelle , B. Morton , S. Mottola , R. Naves , J. Nomen , J. Oey , W. Ogłoza , M. Paiella , H. Pallares , A. Peyrot , F. Pilcher , J-F. Pirenne , P. Piron , M. Polinska , M. Polotto , R. Poncy , J. P. Previt , F. Reignier , D. Renauld , D. Ricci , F. Richard , C. Rinner , V. Risoldi , D. Robilliard , D. Romeuf , G. Rousseau , R. Roy , J. Ruthroff , P. A. Salom , L. Salvador , S. Sanchez , T. Santana-Ros , A. Scholz , G. Séné , B. Skiff , K. Sobkowiak , P. Sogorb , F. Soldán , A. Spiridakis , E. Splanska , S. Sposetti , D. Starkey , R. Stephens , A. Stiepen , R. Stoss , J. Strajnic , J-P. Teng , G. Tumolo , A. Vagnozzi , B. Vanoutryve , J. M. Vugnon , B. D. Warner , M. Waucomont , O. Wertz , M. Winiarski , M. Wolf

Context. A lot of photometric data is produced by surveys such as Pan-STARRS, LONEOS, WISE or Catalina. These data are a rich source of information about the physical properties of asteroids. There are several possible approaches for…

In the analysis of thermal infrared data of asteroids by means of thermophysical models (TPMs) it is a common practice to neglect the uncertainty of the shape model and the rotational state, which are taken as an input for the model. Here,…

Earth and Planetary Astrophysics · Physics 2015-05-20 Josef Hanuš , Marco Delbo' , Josef Ďurech , Victor Alí-Lagoa

Context: Large all-sky surveys provide us with a lot of photometric data that are sparse in time (typically few measurements per night) and can be potentially used for the determination of shapes and rotational states of asteroids. The…

Earth and Planetary Astrophysics · Physics 2016-11-30 Helena Cibulková , Josef Ďurech , David Vokrouhlický , Mikko Kaasalainen , Dagmara A. Oszkiewicz

Unlike NASA's original Kepler Discovery Mission, the renewed K2 Mission will stare at the plane of the Ecliptic, observing each field for approximately 75 days. This will bring new opportunities and challenges, in particular the presence of…

Earth and Planetary Astrophysics · Physics 2015-06-23 R. Szabó , K. Sárneczky , Gy. M. Szabó , A. Pál , Cs. P. Kiss , B. Csák , L. Illés , G. Rácz , L. L. Kiss

Photometric measurements allow the determination of an asteroid's absolute magnitude, which often represents the sole means to infer its size. Photometric observations can be obtained in a variety of filters that can be unique to a specific…

Earth and Planetary Astrophysics · Physics 2024-11-12 Tobias Hoffmann , Marco Micheli , Juan Luis Cano , Maxime Devogèle , Davide Farnocchia , Petr Pravec , Peter Vereš , Björn Poppe

Asteroid families are groups of minor bodies produced by high-velocity collisions. After the initial dispersions of the parent bodies fragments, their orbits evolve because of several gravitational and non-gravitational effects,such as…

Earth and Planetary Astrophysics · Physics 2016-03-23 V. Carruba , D. Nesvorný , S. Aljbaae , R. C. Domingos , M. Huaman

A cratered asteroid acts somewhat like a retroflector, sending light and infrared radiation back toward the Sun, while thermal inertia in a rotating asteroid causes the infrared radiation to peak over the ``afternoon'' part. In this paper a…

Astrophysics · Physics 2007-05-23 Edward L. Wright