J/MNRAS/525/4581ivo://CDS.VizieR/J/MNRAS/525/4581doi:10.26093/cds/vizier.75254581CDSDover L.Lowry S.C.Rozek A.Rozitis B.Jackson S.L.Zegmott T.,Krugly Yu.N.Belskaya I.N.Fitzsimmons A.Green S.F.Snodgrass C.,Weissman P.R.Brozovic MBenner L.A.M.Busch M.W.Ayvazian V.R.,Chiorny V.Inasaridze R.Ya.Krugov M.Mykhailova S.Reva I.Hibbert J.2024-11-06T20:34:55Z2023-09-13T09:22:28ZCDS support team

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

cds-question@unistra.frsolar-systemasteroidsphotometryvisible-astronomyWe present a physical model and spin-state analysis of the potential ly hazardous asteroid (23187) 2000 PN9. As part of a long-term campaign to make direct detections of the YORP effect, we collected optical lightcurves of the asteroid between 2006 and 2020. These observations were combined with planetary radar data to develop a detailed shape model which was used to search for YORP acceleration. We report that 2000 PN9 is a relatively large top-shaped body with a sidereal rotation period of 2.53216+/-0.00015h. Although we find no evidence for rotational acceleration, YORP torques smaller than ~10^-8^rad/day^2^ cannot be ruled out. It is likely that 2000 PN9 is a YORP-evolved object, and may be an example of YORP equilibrium or self limitation.2023MNRAS.525.4581Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/525/4581CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/525/4581https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/525/4581http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/525/4581https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/525/4581https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/525/4581http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/525/4581GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/MNRAS/525/4581/table1All optical light curves of 2000 PN9 are considered in this studyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/35] Light curve numbermeta.idintObs.dateUT date at the beginning of the nightime.epochnullableRsunHeliocentric distanceAUpos.distance;pos.heliocentricfloatRgeoGeocentric distanceAUpos.distance;pos.geocentricfloatalphaSolar phase angledegpos.phaseAngfloatlambda0Observed ecliptic longitudedegpos.ecliptic.lonfloatbeta0Observed ecliptic latitudedegpos.ecliptic.latfloatTotalTotal time over which the target was observedhtime.expofloatObsFacility observing facility (1)meta.id;obscharFilter[BVRI clear] Photometric filtermeta.id;instr.filtercharRef[1/2]? Reference (2)meta.ref;pos.frameintnullableIncmod[*] * indicate which light curves were included in the modellingmeta.codecharIncpho[*] * indicate which light curves that were included in the phase offset analysismeta.codecharJ/MNRAS/525/4581/23187_lcOptical lightcurves of NEA (23187) 2000 PN9recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian date at mid-point of exposure (not light-time corrected)dtime.epochdoublemagRelative magnitudemagphot.magfloate_mag1-sigma uncertainty in relative magnitudemagstat.error;phot.magfloatFilter[BVRI clear] Photometric filtermeta.id;instr.filtercharObsObservatory used to obtain lightcurve (IAU code)meta.id;obscharID[1/35] Lightcurve ID (1)meta.idint