J/ApJ/784/110ivo://CDS.VizieR/J/ApJ/784/110doi:10.26093/cds/vizier.17840110CDSMainzer A.Bauer J.Grav T.Masiero J.Cutri R.M.Wright E.,Nugent C.R.Stevenson R.Clyne E.Cukrov G.Masci F.2018-01-05T08:56:57Z2016-08-08T06:16:45ZCDS support team

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

cds-question@unistra.frsurveysasteroidsinfrared-photometryOnly a very small fraction of the asteroid population at size scales comparable to the object that exploded over Chelyabinsk, Russia has been discovered to date, and physical properties are poorly characterized. We present previously unreported detections of 105 close approaching near-Earth objects (NEOs) by the Wide-field Infrared Survey Explorer (WISE) mission's NEOWISE project. These infrared observations constrain physical properties such as diameter and albedo for these objects, many of which are found to be smaller than 100m. Because these objects are intrinsically faint, they were detected by WISE during very close approaches to the Earth, often at large apparent on-sky velocities. We observe a trend of increasing albedo with decreasing size, but as this sample of NEOs was discovered by visible light surveys, it is likely that selection biases against finding small, dark NEOs influence this finding.2014ApJ...784..110Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/784/110CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/astorb : Orbits of Minor Planets (Bowell+ 2014)II/328 : AllWISE Data Release (Cutri+ 2013)J/ApJ/814/117 : NEOWISE Reactivation mission: 1st yr data (Nugent+, 2015)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)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/784/110https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/784/110http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/784/110https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/784/110https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/784/110http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/784/110GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap8.157980699529898e-21 6.513807192489934e-20InfrareddefaultJ/ApJ/784/110/table2*Thermal fit results for the 105 new NEO detections reported in this workrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name (1)meta.id;meta.maincharONameObject name (packed designation) (1)meta.idcharNobsSimbad column added by the CDSmeta.numberintnullableHMag[16.6/27.4]? Absolute H band magnitude (1)magphys.magAbs;em.IR.HfloatnullableG[0.15] Phase curve slope parameter (1)arith.grad;stat.paramfloatDiam[0.008/1.9] Diameter (D) (1)kmphys.size.diameterfloate_Diam[0.001/0.41] The 1{sigma} uncertainty in Diamkmstat.errorfloatpV[0.01/0.61]? Visible albedo (p_V_) (1)phys.albedofloatnullablee_pV[0/0.33]? The 1{sigma} uncertainty in pVstat.errorfloatnullableeta[0.75/3.2] Beaming parameter ({eta}) (1)stat.fit.paramfloate_eta[0.025/0.61] The 1{sigma} uncertainty in etastat.error;phys.electron.degenfloatpIR[0.01/0.93] Infrared albedo (p_IR_) (1)phys.albedofloate_pIR[0/0.43] The 1{sigma} uncertainty in pIRstat.errorfloatJ/ApJ/784/110/table1Observed WISE magnitudes for each of the Near-Earth Objects (NEOs) presented here, including the Modified Julian Date (MJD)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharprimaryf_Name[*] Flag on Name (*=stacked object) (1)meta.codecharPSimbad column added by the CDSmeta.ref.urlcharMJD[55203.4/55571.4] Modified Julian Date of observationdtime.epochdoublel_W1mag[>] The 2{sigma} upper limit flag on W1mag (2)meta.code.errorcharW1mag[10.8/17.3] WISE 3.4{mu}m band magnitudemagphot.mag;em.IR.3-4umfloate_W1mag[0.02/0.52]? Uncertainty in W1magmagstat.error;phot.magfloatnullablel_W2mag[>] The 2{sigma} upper limit flag on W2mag (2)meta.code.errorcharW2mag[7.9/15.8] WISE 4.6{mu}m band magnitudemagphot.mag;em.IR.4-8umfloate_W2mag[0.009/0.54]? Uncertainty in W2magmagstat.error;phot.magfloatnullablel_W3mag[>] The 2{sigma} upper limit flag on W3mag (2)meta.code.errorcharW3mag[3.2/12.3]? WISE 12{mu}m band magnitude (3)magphot.flux.density;em.IR.8-15umfloatnullablee_W3mag[0.01/0.53]? Uncertainty in W3magmagstat.error;phot.magfloatnullablel_W4mag[>] The 2{sigma} upper limit flag on W4mag (2)meta.code.errorcharW4mag[1.4/8.3]? WISE 22{mu}m band magnitude (3)magphot.flux.density;em.IR.15-30umfloatnullablee_W4mag[0.017/0.52]? Uncertainty in W4magmagstat.error;phot.magfloatnullableApAperture code (0=pipeline profile fit photometry was used) (4)arcsecmeta.codechar