J/A+A/567/A126ivo://CDS.VizieR/J/A+A/567/A126doi:10.26093/cds/vizier.35670126CDSKrolikowska M.2015-01-16T14:35:12Z2014-07-28T10:27:55ZCDS support team

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

cds-question@unistra.frasteroidsThe dynamical evolution of near-parabolic comets strongly depends on the starting values of the orbital elements derived from the positional observations. In addition, when drawing conclusions about the origin of these objects, it is crucial to control the uncertainties of orbital elements at each stage of the dynamical evolution. I apply a completely homogeneous approach to determine the cometary orbits and their uncertainties. The resulting catalogue is suitable for the investigation of the origin and future of near-parabolic comets. First, osculating orbits were determined on the basis of positional data. Second, the dynamical calculations were performed backwards and forwards up to 250AU from the Sun to derive original and future barycentric orbits for each comet. In the present investigation of dynamical evolution, the numerical calculations for a given object start from the swarm of virtual comets constructed using the previously determined osculating (nominal) orbit. In this way, the uncertainties of orbital elements were derived at the end of numerical calculations.2014A&A...567A.126Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/567/A126CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/comets : Database of the orbital elements of comets (Rocher, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/567/A126https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/567/A126http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/567/A126https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/567/A126https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/567/A126http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/567/A126GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/567/A126/tablea1Description of observational material and the new orbital quality assessment for 119 near-parabolic cometsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSample[A1 A2 B] Sample name (G1)meta.id;src.samplecharNsNumber of different observation periods for this cometmeta.numberintnullableDesigComet's designationmeta.id;meta.maincharCnameComet's namemeta.idcharqoscOcculating perihelion distanceAUpos.distance;src.orbital.periastronfloatTimePerihelion timesrc.orbital.periastronarc1Date of the first observationtime.epocharc2Date of the last observationtime.epochNobs[7/5337] number of observations taken into accountmeta.noteintarcyinterval of data (arc in years)yrtime.intervalfloatdh1heliocentric distance of the first observationAUpos.distance;obs.param;obsfloatdh2heliocentric distance of the last observationAUpos.distance;obs.param;obsfloatdatatData type in the sense of time-distribution around perihelion: pre, post, fullmeta.codecharModelModel type (GR=pure gravitational, NG=non-gravitational)meta.notecharQ*GR? Accuracy of gravitational orbitstat.errorfloatnullableQ*NG? Accuracy of non-gravitational orbit when determinablestat.errorfloatnullableQnewNew quality orbit assessment (1a+ is best)meta.code.qualcharRMSRoot-mean-square errorarcsecstat.stdev;instr.det.noisefloatNres[14/10589] Number of residuals taken for orbit determination for a given modelmeta.numberintRefReferences to the solution (see the original article for the remaining symbols) (1)meta.ref;stat.fitcharJ/A+A/567/A126/tablebHeliocentric orbital elements of osculating orbits for comets from Samples A1, A2 and BCom[a-l] Comments (1)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSample[A1 A2 B] Sample name (G1)meta.id;src.samplecharDesigComet's designationmeta.id;meta.maincharEpochEpoch, yeartime.epochTPerihelion time, yeartime.epoch;src.orbital.periastrone_TUncertainty of Perihelion time in daysdstat.errordoubleqPerihelion distanceAUpos.distance;src.orbital.periastrondoublee_qUncertainty of perihelion distanceAUstat.errordoublee[0.96/1.06] Eccentricitysrc.orbital.eccentricitydoublee_eUncertainty of eccentricitystat.errordoubleARG[0/360] Argument of perihelion {omega} (J2000)degsrc.orbital.periastrondoublee_ARGUncertainty of argument of periheliondegstat.errordoubleLONG[0/360] Longitude of the ascending node {Omega} (J2000)degsrc.orbital.nodedoublee_LONGUncertainty of longitude of the ascending nodedegstat.errordoubleiInclination of the orbit in degrees (J2000)degsrc.orbital.inclinationdoublee_iUncertainty of inclinationdegstat.errordouble1/aInverse of semimajor axis1e-06AU**-1phys.size.smajAxisdoublee_1/aUncertainty of inverse of semimajor axis1e-06AU**-1stat.errordoubleJ/A+A/567/A126/tablecBarycentric orbital elements of original orbits, i.e. before entering the planetary zone for near-parabolic comets of Samples A1, A2 and BrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSample[A1 A2 B] Sample name (G1)meta.id;src.samplecharCom[a-l] Comments (1)meta.notecharDesigComet's designationmeta.id;meta.maincharEpochEpoch, yeartime.epochTPerihelion time, yeartime.epoch;src.orbital.periastrone_TUncertainty of Perihelion time in daysdstat.errordoubleqPerihelion distanceAUpos.distance;src.orbital.periastrondoublee_qUncertainty of perihelion distanceAUstat.errordoublee[0.96/1.06] Eccentricitysrc.orbital.eccentricitydoublee_eUncertainty of eccentricitystat.errordoubleARG[0/360] Argument of perihelion {omega} (J2000)degsrc.orbital.periastrondoublee_ARGUncertainty of argument of periheliondegstat.errordoubleLONG[0/360] Longitude of the ascending node {Omega} (J2000)degsrc.orbital.nodedoublee_LONGUncertainty of longitude of the ascending nodedegstat.errordoubleiInclination of the orbit in degrees (J2000)degsrc.orbital.inclinationdoublee_iUncertainty of inclinationdegstat.errordouble1/aInverse of semimajor axis1e-06AU**-1phys.size.smajAxisdoublee_1/aUncertainty of inverse of semimajor axis1e-06AU**-1stat.errordoubleJ/A+A/567/A126/tabledBarycentric orbital elements of future orbits, i.e. after leaving the planetary zone for near-parabolic comets of Samples A1, A2 and BrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSample[A1 A2 B] Sample name (G1)meta.id;src.samplecharCom[a-l] Comments (1)meta.notecharDesigComet's designationmeta.id;meta.maincharEpochEpoch, yeartime.epochTPerihelion time, yeartime.epoch;src.orbital.periastrone_TUncertainty of Perihelion time in daysdstat.errordoubleqPerihelion distanceAUpos.distance;src.orbital.periastrondoublee_qUncertainty of perihelion distanceAUstat.errordoublee[0.96/1.06] Eccentricitysrc.orbital.eccentricitydoublee_eUncertainty of eccentricitystat.errordoubleARG[0/360] Argument of perihelion {omega} (J2000)degsrc.orbital.periastrondoublee_ARGUncertainty of argument of periheliondegstat.errordoubleLONG[0/360] Longitude of the ascending node {Omega} (J2000)degsrc.orbital.nodedoublee_LONGUncertainty of longitude of the ascending nodedegstat.errordoubleiInclination of the orbit in degrees (J2000)degsrc.orbital.inclinationdoublee_iUncertainty of inclinationdegstat.errordouble1/aInverse of semimajor axis1e-06AU**-1phys.size.smajAxisdoublee_1/aUncertainty of inverse of semimajor axis1e-06AU**-1stat.errordoubleJ/A+A/567/A126/tableb4NG parameters for comets with NG heliocentric orbital elements of osculating orbits in tableb.datrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSample[A1 A2 B] Sample name (G1)meta.id;src.samplecharDesigComet's designationmeta.id;meta.maincharA1Radial non-gravitational (NG) parameter1e-08AU.d**-2spect.dopplerVelocdoublee_A1Uncertainy of radial NG parameter1e-08AU.d**-2stat.errordoubleA2Transverse non-gravitational (NG) parameter1e-08AU.d**-2stat.paramdoublee_A2Uncertainy of transverse NG parameter1e-08AU.d**-2stat.errordoubleA3Normal non-gravitational (NG) parameter1e-08AU.d**-2stat.paramdoublee_A3Uncertainy of normal NG parameter1e-08AU.d**-2stat.errordoubletauTime shift of maximum of g(r) relative to perihelion time (2)dtime.epochfloate_tau? Uncertainty of perihelion time (3)dstat.errorfloatnullableModelType of model (STD, PRE, POST, or DIST)meta.notechar