+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   226552 (2003 WN6) Classification: Main-belt Asteroid          SPK-ID: 2226552 [ 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 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1977433624094707 5.8049e-08   a 2.710527020333934 2.7092e-08 au q 2.174538293431378 1.5219e-07 au i 8.188793595658376 7.3105e-06 deg node 250.59504377 4.6392e-05 deg peri 226.9286663468843 5.0303e-05 deg M 208.089673202073 2.0613e-05 deg tp 2459688.302635460729 (2022-Apr-18.80263546) 9.8263e-05 TDB period 1629.967850014798 4.46 2.4438e-05 6.691e-08 d yr n .2208632519940388 3.3113e-09 deg/d Q 3.246515747236489 3.2449e-08 au   Orbit Determination Parameters    # obs. used (total)      240      data-arc span      6678 days (18.28 yr)      first obs. used      2000-01-08      last obs. used      2018-04-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54569      source      ORB      producer      Otto Matic      solution date      2018-May-07 06:11:26   Additional Information  Earth MOID = 1.20024 au   Jupiter MOID = 1.92979 au   T_jup = 3.320  [ hide covariance matrix ] Orbital Elements at Epoch 2456761.5 (2014-Apr-14.0) TDB Reference: JPL 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1960770067403349 5.744e-08   q 2.179001580524107 1.501e-07 au tp 2456422.182159988842 (2013-May-09.68215999) 8.4688e-05 TDB node 250.68636621859 4.6273e-05 deg peri 226.0517959337114 5.0389e-05 deg i 8.196995812922447 7.3228e-06 deg   Orbit Determination Parameters    # obs. used (total)      240      data-arc span      6678 days (18.28 yr)      first obs. used      2000-01-08      last obs. used      2018-04-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54569      source      ORB      producer      Otto Matic      solution date      2018-May-07 06:11:26   Additional Information  Jupiter MOID = 1.92979 au   T_jup = 3.320  Orbit Covariance (6×6)   e q tp node peri i e 3.299375887631412E-15 -8.542490572080252E-15 -2.051279144172239E-13 7.231054577912078E-15 1.864753835013522E-14 -1.488836297012953E-15 q -8.542490572080252E-15 2.252941282500577E-14 6.958685615805146E-13 -1.646693172546863E-14 5.919266059567204E-15 3.999433718907449E-15 tp -2.051279144172239E-13 6.958685615805146E-13 7.172008280124178E-9 3.970190627920433E-12 1.726361927432218E-9 1.012317367591377E-12 node 7.231054577912078E-15 -1.646693172546863E-14 3.970190627920433E-12 2.141221983354072E-9 -2.117683794394925E-9 -3.908994733506959E-11 peri 1.864753835013522E-14 5.919266059567204E-15 1.726361927432218E-9 -2.117683794394925E-9 2.539096015472822E-9 3.897262111256849E-11 i -1.488836297012953E-15 3.999433718907449E-15 1.012317367591377E-12 -3.908994733506959E-11 3.897262111256849E-11 5.362369978962393E-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 16.2   n/a MPO440183   226552 (2003 WN6)          Discovered 2003-Nov-16 by Spacewatch at Kitt Peak Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-01 20:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin