J/A+A/546/A72 Light curves of Flora region asteroids (Kryszczynska+, 2012)
Do Slivan States exist in the Flora family?
I. Photometric survey of the Flora region.
Kryszczynska A., Colas F., Polinska M., Hirsch R., Ivanova V.,
Apostolovska G., Bilkina B., Velichko F.P., Kwiatkowski T., Kankiewicz P.,
Vachier F., Umlenski V., Michalowski T., Marciniak A., Maury A.,
Kaminski K., Fagas M., Dimitrov W., Borczyk W., Sobkowiak K., Lecacheux J.,
Behrend R., Klotz A., Bernasconi L., Crippa R., Manzini F., Poncy R.,
Antonini P., Oszkiewicz D., Santana-Ros T.
<Astron. Astrophys. 546, A72 (2012)>
=2012A&A...546A..72K 2012A&A...546A..72K
ADC_Keywords: Solar system ; Minor planets ; Photometry, CCD
Keywords: techniques: photometric - minor planets: asteroids: general
Abstract:
Recent studies have uncovered evidence that the statistical properties
of asteroids' physical parameters are a fundamental source of
information on the physics of their collisions and evolution. The
analysis of the spin rates and spin vector distributions helps us to
understand the role of various known and new effects. The alignment of
spin vectors and the correlation of spin rates are for the first time
observed for ten members of the Koronis family. These unexpected
non-random orientations of the spin axes and correlations of the spin
rates, now known as Slivan states are interpreted in terms of a YORP
effect and spin-orbit resonances.
To study non-gravitational-effects, there appears to be a need for new
observational campaigns devoted to determining the physical parameters
of the asteroid families.
We analysed the photometric observations of the asteroids, which are
the most efficient method of studying asteroid physical parameters.
Description:
The files contain asteroid brightness, aspect data and observing
information for corresponding date. These files were used for
obtaining synodic period rotation. Individual lightcurves within a
files are identified with a light curve number, all lightcurves are
relative.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table.dat 74 552 Aspect data and observing information
lc/* . 55 Individual light curves
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See also:
B/astorb : Orbits of Minor Planets (Bowell+ 2012)
J/A+A/465/331 : Asteroid brightness and geometry (Durech+, 2007)
Byte-by-byte Description of file: table.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Ast Designation of the asteroid
6- 15 A10 "YYYY/MM/DD" Obs.date Date of observation
17- 26 F10.2 d JD Julian date of observation(1)
28- 33 F6.4 AU r Asteroid-Sun distance (1)
35- 40 F6.4 AU Delta Asteroid-Earth distance Δ (1)
42- 46 F5.2 deg alpha Solar phase angle α (1)
48- 53 F6.2 deg ELon Ecliptic longitude (1)
55- 60 F6.2 deg ELat Ecliptic latitude (1)
62 A1 --- F [CBVRIL] Filter: clear (C), Bessel BVRI or
L (at Pic du Midi)
64- 71 A8 --- Obs Observatory (2)
73- 74 I2 --- LCN Light curve number
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Note (1): Coordinates given for the middle of the observation
Note (2): Observatories and codes, as follows:
Bed = (132) Bedoin Observatory, France
Bor = (187) Borowiec, Poland
Bor PST = (187) Poznan Spectroscopic Telescope, Borowiec, Poland
HH = (E14) Hunters Hill Observatory, Australia
Kie = (B02) Kielce Observatory, Poland
Kha = (101) Kharkov, Ukraine
Le Cres = (177) Le Cres Observatory, France
LE = (A14) Les Engarouines, France
NOT = (950) Nordic Optical Telescope, La Palma, Spain
OHP = (511) Observatoire de Haute Provence, France
Pic = (586) Pic du Midi, France
PdD = Pico dos Dias, Brazil
Poz = (47) Poznan Observatory, Poland
Roz = (71) NAO Rozhen, Bulgaria
Roz 2m = (71) NAO Rozhen, Bulgaria
SAAO = (A60) South African Astronomical Observatory, Republic of
South Africa
SAdS = (A12) Stazione Astronomica di Sozzago, Italy
SPA = (I10) San Pedro de Atacama, Chile
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Byte-by-byte Description of file: lc/*
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Bytes Format Units Label Explanations
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1- 15 F15.7 d JD JD epoch (1)
18- 24 F7.3 --- br Relative brightness
26- 27 I2 --- LCN Light curve number
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Note (1): not corrected for the light travel time
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Acknowledgements:
Agnieszka Kryszczynska, agn(at)amu.edu.pl
(End) A. Kryszczynska [Astron. Obs. Inst.], P. Vannier [CDS] 30-Jul-2012