J/A+A/693/A66ivo://CDS.VizieR/J/A+A/693/A66doi:10.26093/cds/vizier.36930066CDSVavilov D.Carry B.2025-03-03T20:01:47Z2025-01-03T15:08:33ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsolar-systemasteroidsvisible-astronomyThe understanding of the dynamical evolution of asteroids through the secular Yarkovsky effect requires the determination of many physical properties, including the rotation period. We aim at proposing a method for robust determination of the rotation period of asteroids, avoiding pitfalls of alias, and apply it to thousands of asteroid light curves measured by the NASA TESS mission. We develop a robust period-analysis algorithm, based on Fourier series. Our approach includes a comparison of the results from multiple orders and tests on the number of extremes to identify and reject potential aliases. We also provide the uncertainty interval for the result as well as additional possible periods. We report the rotation period for 4521 asteroids more precise than 10%. A comparison with the literature (whenever avail- able) reveals very good agreement and validates the approach presented here. Our approach also highlights cases for which the determination of the period should be considered invalid. The dataset presented here confirms the apparent small number of asteroids with a rotation between 50 and 100h, correlated with diameter. The amplitude of the light curves is found to increase toward smaller diameters, as asteroids become less and less spherical. Finally, there is a systematic difference between the broad C and S complex in the amplitude- period, revealing the statistically lower density of C types compared to S type asteroids. Our approach to the determination of asteroid rotation period is based on simple concepts yet robust and can be applied to large corpora of time serie photometry, such as those extracted from exoplanet transit surveys.2025A&A...693A..66Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/693/A66CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/693/A66https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/693/A66http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/693/A66https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/693/A66https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/693/A66http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/693/A66GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/693/A66/tessAsteroid rotation periods from TESSFileNameName of the file with light curve data in subdirectory per_objectmeta.id;meta.filecharMPC? IAU number of the asteroid (sso_number)meta.idintnullableNameIAU name/designation of the asteroid (sso_name)meta.id;meta.maincharPerSynodic rotation period (period)htime.perioddoubleb_PerLower bound on rotation period (err_period_down)htime.period;stat.mindoubleB_PerUpper bound on rotation period (err_period_up)htime.period;stat.maxdoublee_PerError on rotation period (err_period)hstat.errordoublesigmaValueSignificance parameter sigma (sigma_value)stat.fit.goodnessdoublesigmaThresholdThreshold of acceptance for sigma (sigma_threshold)instr.sensitivitydoubleNFSOrder of the Fourier Series (n_FS)meta.numberintNobsTotal number of observations (n_obs)meta.numberintNrejectedNumber of rejected observations (n_rejected)meta.numberintNvalidNumber of observations used in the fit (n_valid)meta.numberintmagmeanMean magnitude (mumag)magphot.magdoublephasec1First coefficient of the phase function (phase_c1)stat.fit.paramdoublephasec2Second coefficient of the phase function (phase_c2)stat.fit.paramdoublep2pPeak-to-peak amplitude of the lightcurve (p2p)src.var.amplitudedoublePerOthersList of other possible periods (period_others)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint