J/AJ/152/63ivo://CDS.VizieR/J/AJ/152/63doi:10.26093/cds/vizier.51520063CDSNugent C.R.Mainzer A.Bauer J.Cutri R.M.Kramer E.A.Grav T.,Masiero J.Sonnett S.Wright E.L.2017-10-13T15:40:44Z2016-09-23T14:04:04ZCDS support team

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

cds-question@unistra.frasteroidsinfrared-photometrysurveysThe Near-Earth Object Wide-Field Infrared Survey Explorer (NEOWISE) mission continues to detect, track, and characterize minor planets. We present diameters and albedos calculated from observations taken during the second year since the spacecraft was reactivated in late 2013. These include 207 near-Earth asteroids (NEAs) and 8885 other asteroids. Of the NEAs, 84% NEAs did not have previously measured diameters and albedos by the NEOWISE mission. Comparison of sizes and albedos calculated from NEOWISE measurements with those measured by occultations, spacecraft, and radar-derived shapes shows accuracy consistent with previous NEOWISE publications. Diameters and albedos fall within +/-~20% and +/-~40%, 1-sigma, respectively, of those measured by these alternate techniques. NEOWISE continues to preferentially discover near-Earth objects which are large (>100m), and have low albedos.2016AJ....152...63Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/152/63CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/astorb : Orbits of Minor Planets (Bowell+ 2014)J/ApJ/814/117 : NEOWISE Reactivation mission: 1st yr data (Nugent+, 2015)J/ApJ/784/110 : NEOWISE observations of near-Earth objects (Mainzer+, 2014)J/MNRAS/433/2075 : Asteroid families identification (Carruba+, 2013)J/ApJ/770/7 : WISE/NEOWISE Main Belt asteroids (Masiero+, 2013)J/ApJ/760/L12 : WISE/NEOWISE NEOs preliminary thermal fits (Mainzer+, 2012)J/ApJ/759/L8 : WISE/NEOWISE obs. of main belt asteroids (Masiero+, 2012)J/ApJ/759/49 : Jovian Trojan asteroids with WISE/NEOWISE (Grav+, 2012)J/ApJ/744/197 : WISE/NEOWISE observations of Hilda asteroids (Grav+, 2012)J/ApJ/743/156 : NEOWISE obs. of NEOs: preliminary results (Mainzer+, 2011)J/ApJ/742/40 : Jovian Trojans asteroids with WISE/NEOWISE (Grav+, 2011)J/ApJ/741/68 : Main Belt asteroids with WISE/NEOWISE. I. (Masiero+, 2011)http://www.minorplanetcenter.net/iau/ECS/MPCAT-OBS/MPCAT-OBS.html : IAU MPChttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/152/63https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/152/63http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/152/63https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/152/63https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/152/63http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/152/63GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap3.830199579824256e-20 6.513807192489934e-20InfrareddefaultJ/AJ/152/63/asteroidsMeasured diameters and albedos of near-Earth asteroids (NEA) and non-NEA observed during NEOWISE year 2 mission (tables 4 and 5MPCAsteroid name, in Minor Planet Center (MPC) packed formatmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAstNear-EArth Asteroid (NEA; table4) or non-NEA (table5)meta.codecharNameAsteroid number or provisional namemeta.id;meta.mainchar1stNumber of NEOWISE 1st year data (Nugent et al. 2015, Cat. J/ApJ/814/117)meta.numberintnullableNobsNumber of NEOWISE observations (table 3)meta.numberintnullableHMag[5.4/23.7] Absolute H band magnitudemagphys.magAbs;em.IR.HfloatG[0/0.5] Slope parameterarith.grad;stat.paramfloatDiam[0.09/451] Asteroid diameterkmphys.size.diameterfloate_Diam[0.01/200.3] Uncertainty in Diamkmstat.errorfloatpV[0.02/0.6] Visible geometrical albedophys.albedofloate_pV[0/0.3] Uncertainty in pVstat.errorfloateta[0.4/1.8] Beaming parameter, {eta}stat.fit.paramfloate_eta[0/0.8] Uncertainty in {eta}stat.error;phys.electron.degenfloatpIR/pV[0.2/8.7] Ratio infrared to visible geometrical albedophys.albedofloate_pIR/pV[0.1/0.6] Uncertainty in pIR/pVstat.errorfloatW2amp[0.02/5.3] Amplitude of the WISE 4.6{mu}m (W2) light curvemagsrc.var.amplitudefloatN1[0/114] Number of WISE 3.4{mu}m (W1) band observationsmeta.numberintN2[4/118] Number of WISE 4.6{mu}m (W2) band observationsmeta.numberintJ/AJ/152/63/table3*NEOWISE magnitudes for the near-Earth asteroids (NEAs) modeled in this paperNameSimbad column added by the CDSmeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMPCAsteroid name, in Minor Planet Center (MPC) packed formatmeta.idcharMJDObservation time in Modified Julian Datedtime.epochdoublef_W1mag[>] Upper limit flag on W1mag (1)meta.codecharW1mag[11.3/17.3]? WISE 3.4{mu}m (W1) magnitudemagphot.mag;em.IR.3-4umfloatnullablee_W1mag[0.01/0.6]? Uncertainty in W1magmagstat.error;phot.magfloatnullableW2mag[8.2/14.8] WISE 4.6{mu}m (W2) magnitudemagphot.mag;em.IR.4-8umfloate_W2mag[0.01/0.29] Uncertainty in W2magmagstat.error;phot.magfloat