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J/A+A/507/495 Light curves of Datura and 2003 CL5 asteroids (Vokrouhlicky+ 2009)

Datura family: The 2009 update. Vokrouhlicky D., Durech J., Michalowski T., Krugly Y.N., Gaftonyuk N.M., Krysczynska A., Colas F., Lecacheux J., Molotov I., Slyusarev I., Polinska M., Nesvorny D., Beshore E. <Astron. Astrophys. 507, 495 (2009)> =2009A&A...507..495V
ADC_Keywords: Minor planets ; Photometry, CCD Keywords: minor planets, asteroids - techniques: photometric Abstract: Research of asteroid families has been recently refreshed by the discovery of very young ones. These families are of great interest because they represent the product of their parent body fragmentation before orbital and physical evolutionary processes can change them. A cluster of seven objects around the largest body (1270) Datura is of particular interest because it has enough known members and resides in the inner part of the main asteroid belt, facilitating observations. We carried out photometric observations of the two largest members of the Datura family - asteroids (1270) Datura and (90265) 2003 CL5 - with the goal of inferring their physical parameters. We also used numerous astrometric observations of Datura-family members in the past few years to revisit the age of this cluster. Description: The files contain asteroid brightness and geometry for corresponding epochs. Individual lightcurves within a file are separated by an empty line, all lightcurves are relative. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file objects.dat 26 2 Asteroid list lc1270.dat 85 1088 Lightcurves of asteroid (1270) Datura lc90265.dat 85 205 Lightcurves of asteroid (90265) 2003 CL5
See also: B/astorb : Orbits of Minor Planets (Bowell+ 2009) J/other/P+SS/53.925 : CCD photometry of 23 minor planets (Szekely+, 2005) J/A+A/465/331 : Asteroid brightness and geometry (Durech+, 2007) Byte-by-byte Description of file: objects.dat
Bytes Format Units Label Explanations
1- 5 I5 --- Ast Asteroid number 7- 14 A8 --- Name Asteroid name 16- 26 A11 --- FileName Name of the file containing the light curve
Byte-by-byte Description of file: lc1270.dat lc90265.dat
Bytes Format Units Label Explanations
1- 14 F14.6 d JD JD epoch corrected for the light-time corresponding to the Earth-asteroid distance 18- 23 F6.4 --- br Relative brightness in intensity units, mean brightness of each lightcurve is unity 26- 34 F9.6 AU Sx x component of the vector from the asteroid to the Sun in J2000 ecliptic Cartesian coordinates 36- 44 F9.6 AU Sy y component of the vector from the asteroid to the Sun in J2000 ecliptic Cartesian coordinates 46- 54 F9.6 AU SZ Z component of the vector from the asteroid to the Sun in J2000 ecliptic Cartesian coordinates 57- 65 F9.6 AU Ex x component of the vector from the asteroid to the Earth in J2000 ecliptic Cartesian coordinates 67- 75 F9.6 AU Ey y component of the vector from the asteroid to the Earth in J2000 ecliptic Cartesian coordinates 77- 85 F9.6 AU EZ Z component of the vector from the asteroid to the Earth in J2000 ecliptic Cartesian coordinates
Acknowledgements: Josef Durech, durech(at)sirrah.troja.mff.cuni.cz
(End) Patricia Vannier [CDS] 03-Sep-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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