Shapes and rotational properties of thirty asteroids from photometric data

  title={Shapes and rotational properties of thirty asteroids from photometric data},
  author={Johanna Torppa and Mikko Kaasalainen and Tadeusz Michałowski and Tomasz Kwiatkowski and Agnieszka Kryszczyńska and Peter V Denchev and Richard Kowalski},
Physical models of asteroids from sparse photometric data
Abstract We present an overview of our work on shape and spin state determination of asteroids from photometric data sparse in time. Our results are based on simulations that were performed using
Photometry and models of selected main belt asteroids. VI. 160 Una, 747 Winchester, and 849 Ara
We present a set of new photometric observations of three main belt asteroids: 160 Una, 747 Winchester, and 849 Ara. This, combined with the available data, allowed us to construct their physical
Lightcurve inversion for asteroid spins and shapes
Knowledge of the physical properties of asteroids is crucial in many branches of solar-system research. Knowledge of the spin states and shapes is needed, e.g., for accurate orbit determination and
Asteroid models from combined sparse and dense photometric data
Aims. Shape and spin state are basic physical characteristics of a n asteroid. They can be derived from disc-integrated photometry by the lightcurve inversion method. Increasing the number of
Photometry and models of selected main belt asteroids V. 73 Klytia, 377 Campania, and 378 Holmia
We present photometric observations of three asteroids: 73 Klytia, 377 Campania, and 378 Holmia, together with their spin and shape models. The models were constructed with the lightcurve inversion
Photometry and models of selected main belt asteroids - II. 173 Ino, 376 Geometria, and 451 Patientia
Photometric observations for 173 Ino (1998, 1999, 2002), 376 Geometria (1996, 1997/98, 1999, 2000, 2004) and 451 Patientia (1998, 2002, 2003) carried out at six observatories are presented. Using
Physical models of ten asteroids from an observers' collaboration network
Aims. We present physical models of ten asteroids obtained by means of lightcurve inversion. A substantial part of the photometric data was observed by amateur astronomers. We emphasize the


Models of Twenty Asteroids from Photometric Data
We present models of the shapes and rotational states of selected asteroids based on data from the Uppsala Asteroid Photometric Catalogue. The results show a wide variety of shapes especially among
Optimization Methods for Asteroid Lightcurve Inversion. II. The Complete Inverse Problem
Abstract The rotation period, pole direction, and scattering parameters of an asteroid can be deduced from its lightcurves simultaneously with the shape. Simulations and real data indicate that the
Optimization Methods for Asteroid Lightcurve Inversion: I. Shape Determination
Abstract We have developed new methods for determining the shapes (and albedo distributions), rotation periods, and pole directions (as well as other parameters, e.g., those of the scattering law) of
Binary structures among large asteroids
The imaging of well-observed large asteroids by lightcurve inversion has revealed objects, such as 44 Nysa and 41 Daphne, that are distinctly asymmetric and globally very different from
Asteroid observations with the Hubble Space Telescope FGS - II. Duplicity search and size measurements for 6 asteroids
We present the results of the observations of five Main Belt asteroids and one Trojan obtained using the Fine Guidance Sensors (FGS) of the Hubble Space Telescope. For each object, estimates of the
Photometric signatures of highly nonconvex and binary asteroids
We present an analysis of synthetic lightcurves of highly nonconvex single or synchronous binary asteroids, paying particular attention to the connection between the available solar phase angles and
CCD photometry, spin and shape models of five asteroids: 225, 360, 416, 516, and 1223
New CCD photometric observations for 225 Henrietta (1995), 360 Carlova (1996, 1997, 1998), 416 Vaticana (1995{96, 1998), 516 Amherstia (1995, 1996), and 1223 Neckar (1995{96) carried out at ve
Mutual Eclipse Events in Asteroidal Binary System 1996 FG3: Observations and a Numerical Model
Abstract We report the CCD observations of the Apollo-type asteroid 1996 FG 3 obtained in April 1996 and December 1998. The lightcurves show a double periodicity which, following Pravec et al. ( IAU