J/A+A/545/A131 Photometry of 8 main belt asteroids (Marciniak+, 2012)
Photometry and models of selected main-belt asteroids.
IX. Introducing Interactive Service for Asteroid Models (ISAM).
Marciniak A., Bartczak P., Santana-Ros T., Michalowski T., Antonini P.,
Behrend R., Bembrick C., Bernasconi L., Borczyk W., Colas F., Coloma J.,
Crippa R., Esseiva N., Fagas M., Fauvaud M., Fauvaud S., D. D. M. Ferreira,
Hein Bertelsen R. P., Higgins D., Hirsch R., Kajava J. J. E., Kaminski K.,
Kryszczynska A., Kwiatkowski T., Manzini F., Michalowski J.,
Michalowski M. J., Paschke A., Polinska M., Poncy R., Roy R., Santacana G.,
Sobkowiak K., Stasik M., Starczewski S., Velichko F., Wucher H., Zafar T.
<Astron. Astrophys. 545, A131 (2012)>
=2012A&A...545A.131M 2012A&A...545A.131M
ADC_Keywords: Solar system ; Minor planets ; Photometry, CCD
Keywords: techniques: photometric - minor planets: asteroids
Abstract:
The shapes and spin states of asteroids observed with photometric
techniques can be reconstructed using the lightcurve inversion method.
The resultant models can then be confirmed or exploited further by
other techniques, such as adaptive optics, radar, thermal infrared,
stellar occultations, or space probe imaging.
During our ongoing work to increase the set of asteroids with known
spin and shape parameters, there appeared a need for displaying the
model plane-of-sky orientations for specific epochs to compare models
from different techniques. It would also be instructive to be able to
track how the complex lightcurves are produced by various asteroid
shapes.
Description:
The files contain asteroid brightness and geometry for corresponding
epochs. These files were used for obtaining shape models and spin
states of the asteroids. Individual lightcurves within a file are
separated by an empty line, all lightcurves are relative.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
objects.dat 69 8 Asteroid fundamental parameters
76lcs.dat 112 1711 Asteroid 76 Freia individual lightcurves
127lcs.dat 112 2113 Asteroid 127 Johanna individual lightcurves
355lcs.dat 112 621 Asteroid 355 Gabriella individual lightcurves
386lcs.dat 112 1983 Asteroid 386 Siegena individual lightcurves
417lcs.dat 112 1619 Asteroid 417 Suevia individual lightcurves
435lcs.dat 112 1302 Asteroid 435 Ella individual lightcurves
505lcs.dat 112 1866 Asteroid 505 Cava individual lightcurves
699lcs.dat 112 857 Asteroid 699 Hela individual lightcurves
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See also:
J/A+A/465/331 : Asteroid brightness and geometry (Durech+, 2007)
J/A+A/498/313 : Photometry of 3 main belt asteroids (Marciniak+, 2009)
J/A+A/508/1503 : Photometry of 3 main belt asteroids (Marciniak+, 2009)
J/A+A/529/A107 : Photometry of 4 main belt asteroids (Marciniak+, 2011)
Byte-by-byte Description of file: objects.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Ast Asteroid number
5- 14 A10 --- Name Asteroid name
16- 20 F5.2 mag H Absolute magnitude H parameter (1)
22- 26 F5.1 km Diam ? IRAS diameter (1)
28- 36 F9.6 deg i Inclination (1)
38- 47 F10.8 --- e Eccentricity (1)
49- 58 F10.8 AU a Semimajor axis (1)
60- 69 A10 --- FileName Name of the file containing the light curve
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Note (1): Data from The Asteroid Orbital Elements Database, Cat. B/astorb.
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Byte-by-byte Description of file: *lcs.dat
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Bytes Format Units Label Explanations
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2- 15 F14.6 d JD JD epoch corrected for the light-time
corresponding to the Earth-asteroid distance
17- 28 E12.6 --- br Relative brightness in intensity units,
mean brightness of each lightcurve is unity
30- 42 E13.6 AU Sx x component of the vector from the asteroid to
the Sun in J2000 ecliptic Cartesian coordinates
44- 56 E13.6 AU Sy y component of the vector from the asteroid to
the Sun in J2000 ecliptic Cartesian coordinates
58- 70 E13.6 AU Sz z component of the vector from the asteroid to
the Sun in J2000 ecliptic Cartesian coordinates
72- 84 E13.6 AU Ex x component of the vector from the asteroid to
the Earth in J2000 ecliptic Cartesian coordinates
86- 98 E13.6 AU Ey y component of the vector from the asteroid to
the Earth in J2000 ecliptic Cartesian coordinates
100-112 E13.6 AU Ez z component of the vector from the asteroid to
the Earth in J2000 ecliptic Cartesian coordinates
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Acknowledgements:
Anna Marciniak, aniab(at)lab.astro.amu.edu.pl
References:
Michalowski et al., Paper I 2004A&A...416..353M 2004A&A...416..353M
Michalowski et al., Paper II 2005A&A...443..329M 2005A&A...443..329M
Michalowski et al., Paper III 2006A&A...459..663M 2006A&A...459..663M
Marciniak et al., Paper IV 2007A&A...473..633M 2007A&A...473..633M
Marciniak et al., Paper V 2008A&A...478..559M 2008A&A...478..559M
Marciniak et al., Paper VI 2009A&A...498..313M 2009A&A...498..313M, Cat. J/A+A/498/313
Marciniak et al., Paper VII 2009A&A...508.1503M 2009A&A...508.1503M, Cat. J/A+A/508/1503
Marciniak et al., Paper VIII 2011A&A...529A.107M 2011A&A...529A.107M, Cat. J/A+A/529/107
(End) Patricia Vannier [CDS] 31-Jul-2012