+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   215224 (2000 WX131) Classification: Main-belt Asteroid          SPK-ID: 2215224 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1761969501387523 3.4656e-08   a 2.326017470348384 1.1466e-08 au q 1.916180286103543 7.8523e-08 au i 6.853981824962584 4.5284e-06 deg node 74.40840719243195 3.8619e-05 deg peri 26.63243183324562 4.1902e-05 deg M 155.3900941625996 1.5321e-05 deg tp 2458441.207862032403 (2018-Nov-18.70786203) 5.4441e-05 TDB period 1295.740058292572 3.55 9.5809e-06 2.623e-08 d yr n .2778335034840094 2.0543e-09 deg/d Q 2.735854654593225 1.3486e-08 au   Orbit Determination Parameters    # obs. used (total)      452      data-arc span      6762 days (18.51 yr)      first obs. used      2000-11-01      last obs. used      2019-05-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60201      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 03:20:45   Additional Information  Earth MOID = .935721 au   Jupiter MOID = 2.43067 au   T_jup = 3.544  [ hide covariance matrix ] Orbital Elements at Epoch 2457167.5 (2015-May-25.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1767220486780044 3.4708e-08   q 1.914237508451004 7.8708e-08 au tp 2457147.116491636701 (2015-May-04.61649164) 5.3877e-05 TDB node 74.44135002711752 3.8616e-05 deg peri 26.7446430791469 4.1862e-05 deg i 6.855282537522303 4.5292e-06 deg   Orbit Determination Parameters    # obs. used (total)      452      data-arc span      6762 days (18.51 yr)      first obs. used      2000-11-01      last obs. used      2019-05-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60201      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 03:20:45   Additional Information  Jupiter MOID = 2.43067 au   T_jup = 3.544  Orbit Covariance (6×6)   e q tp node peri i e 1.204611014622425E-15 -2.713093211346073E-15 -2.046073221662244E-13 1.393977131154332E-14 -7.583455470885793E-14 -2.441897566714958E-15 q -2.713093211346073E-15 6.195005256608137E-15 4.362044172401485E-13 -3.144745226361035E-14 1.627494315604442E-13 5.683559545366781E-15 tp -2.046073221662244E-13 4.362044172401485E-13 2.902737513541317E-9 2.915231076950766E-11 8.90572015680037E-10 -1.705675629903317E-12 node 1.393977131154332E-14 -3.144745226361035E-14 2.915231076950766E-11 1.491184901619274E-9 -1.470872738284431E-9 -4.656892254930116E-11 peri -7.583455470885793E-14 1.627494315604442E-13 8.90572015680037E-10 -1.470872738284431E-9 1.752468327999523E-9 4.575786090326674E-11 i -2.441897566714958E-15 5.683559545366781E-15 -1.705675629903317E-12 -4.656892254930116E-11 4.575786090326674E-11 2.051383631287076E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.5   n/a MPO418153   215224 (2000 WX131)          Discovered 2000-Nov-20 by LONEOS at Anderson Mesa Reference: 20090607/Numbers.arc Last Updated: 2009-06-08 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-03 16:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin