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Asteroid shape inversion using photometric data has been a key area of study in planetary science and astronomical research.However, the current methods for asteroid shape inversion require extensive iterative calculations, making the…

Earth and Planetary Astrophysics · Physics 2025-04-02 YiJun Tang , ChenChen Ying , ChengZhe Xia , XiaoMing Zhang , XiaoJun Jiang

Context. Earlier work suggests that slowly rotating asteroids should have higher thermal inertias than faster rotators because the heat wave penetrates deeper into the sub-surface. However, thermal inertias have been determined mainly for…

By means of a varied-shape thermophysical model (VS-TPM) of Hanus et al. (2015) that takes into account asteroid shape and pole uncertainties, we analyze the thermal IR data acquired by the NASA's WISE satellite of about 300 asteroids with…

Earth and Planetary Astrophysics · Physics 2018-05-28 Josef Hanus , Marco Delbo , Josef Durech , Victor Ali-Lagoa

The thermal inertia of an asteroid is an indicator of the thermophysical properties of the regolith and is determined by the size of grains on the surface. Previous thermophysical modeling studies of asteroids have identified or suggested…

Earth and Planetary Astrophysics · Physics 2021-07-14 Eric M. MacLennan , Joshua P. Emery

The available set of spin and shape modelled asteroids is strongly biased against slowly rotating targets and those with low lightcurve amplitudes. As a consequence of these selection effects, the current picture of asteroid spin axis…

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

We show that a number of claims made in Myhrvold (2018) (hereafter M2018b) regarding the WISE data and thermal modeling of asteroids are incorrect. That paper provides thermal fit parameter outputs for only two of the about 150,000 object…

Earth and Planetary Astrophysics · Physics 2018-11-06 Edward Wright , Amy Mainzer , Joseph Masiero , Tommy Grav , Roc Cutri , James Bauer

We describe interferometric observations of the asteroid (41) Daphne in the thermal infrared obtained with the Mid-Infrared Interferometric Instrument (MIDI) of the Very Large Telescope Interferometer (VLTI). We derived the size and the…

Earth and Planetary Astrophysics · Physics 2015-03-19 Alexis Matter , Marco Delbo , Sebastiano Ligori , Nicolas Crouzet , Paolo Tanga

Time-resolved photometry of asteroids can be used for shape and spin reconstruction. If the number of measurements per asteroid is not sufficient to create a model, the whole data set can be used to reconstruct the distribution of shape…

Earth and Planetary Astrophysics · Physics 2020-05-14 Mikko Kaasalainen , Josef Durech

We publicly release ATM, a Python package designed to model asteroid flux measurements to estimate an asteroid's size, surface temperature distribution, and emissivity. The full multi-dimensional posterior pdf is found using Markov Chain…

Earth and Planetary Astrophysics · Physics 2019-05-09 Joachim Moeyens , Nathan Myhrvold , Željko Ivezić

We present shape models and volume estimates of twenty asteroids based on relative photometry and adaptive optics images. We discuss error estimation and the effects of myopic deconvolution on shape solutions. For further analysis of the…

Earth and Planetary Astrophysics · Physics 2017-11-29 Matti Viikinkoski , Josef Hanus , Mikko Kaasalainen , Franck Marchis , Josef Durech

Non-resolved thermal infrared observations enable studies of thermal and physical properties of asteroid surfaces provided the shape and rotational properties of the target are well determined via thermo-physical models. We used…

We use the lightcurve inversion method to derive new shape models and spin states of asteroids from the sparse-in-time photometry compiled in the Lowell Photometric Database. To speed up the time-consuming process of scanning the period…

Earth and Planetary Astrophysics · Physics 2016-02-17 J. Durech , J. Hanus , D. Oszkiewicz , R. Vanco

The near-Earth asteroid (25143) Itokawa was characterised in great detail by the Japanese Hayabusa mission. We revisited the available thermal observations in the light of the true asteroid properties with the goal to evaluate the…

Earth and Planetary Astrophysics · Physics 2015-06-19 T. G. Müller , S. Hasegawa , F. Usui

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

It is common practice nowadays to derive spins and 3D shapes of asteroids from the inversion of photometric light curves. However, this method requires a good number of photometric points and dedicated observing sessions. On the other hand,…

Earth and Planetary Astrophysics · Physics 2019-04-01 A. Carbognani , P. Tanga , A. Cellino , M. Delbo , S. Mottola , E. Marchese

Binary systems comprise approximately 15 per cent of the near-Earth asteroid population, yet thermal-infrared data are often interpreted for these bodies as if they are single objects. Thermal-IR light curves of binary asteroids (3905)…

Earth and Planetary Astrophysics · Physics 2024-09-20 Samuel L. Jackson , Benjamin Rozitis

The Asteroid Terrestrial-impact Last Alert System (ATLAS) is an all-sky survey primarily aimed at detecting potentially hazardous near-Earth asteroids. Apart from the astrometry of asteroids, it also produces their photometric measurements…

Earth and Planetary Astrophysics · Physics 2020-11-04 J. Durech , J. Tonry , N. Erasmus , L. Denneau , A. N. Heinze , H. Flewelling , R. Vanco

Deriving thermophysical properties such as thermal inertia from thermal infrared observations provides useful insights into the structure of the surface material on planetary bodies. The estimation of these properties is usually done by…

Instrumentation and Methods for Astrophysics · Physics 2020-07-08 M. Hamm , I. Pelivan , M. Grott , J. de Wiljes