+ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .197743371936115 5.4456e-08   a 2.710527001841146 2.3678e-08 au q 2.17453825277319 1.4571e-07 au i 8.188799892024846 5.1886e-06 deg node 250.5950384160702 4.5745e-05 deg peri 226.9286847166321 4.8539e-05 deg M 208.089670264509 1.9997e-05 deg tp 2459688.302641722221 (2022-Apr-18.80264172) 9.6664e-05 TDB period 1629.967833333919 4.46 2.1358e-05 5.848e-08 d yr n .2208632542543246 2.8941e-09 deg/d Q 3.246515750909103 2.8361e-08 au   Orbit Determination Parameters    # obs. used (total)      273      data-arc span      7586 days (20.77 yr)      first obs. used      2000-01-08      last obs. used      2020-10-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55033      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 02:32:04   Additional Information  Earth MOID = 1.20024 au   Jupiter MOID = 1.92979 au   T_jup = 3.320  [ hide covariance matrix ] Orbital Elements at Epoch 2457534.5 (2016-May-26.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1956702133680741 5.3647e-08   q 2.181100366795749 1.43e-07 au tp 2458053.381126859218 (2017-Oct-26.88112686) 8.4693e-05 TDB node 250.6679580826317 4.5643e-05 deg peri 226.1803863523288 4.8606e-05 deg i 8.194199082842562 5.1936e-06 deg   Orbit Determination Parameters    # obs. used (total)      273      data-arc span      7586 days (20.77 yr)      first obs. used      2000-01-08      last obs. used      2020-10-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55033      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 02:32:04   Additional Information  Jupiter MOID = 1.92979 au   T_jup = 3.320  Orbit Covariance (6×6)   e q tp node peri i e 2.877980699456681E-15 -7.604973276496293E-15 8.763656964858559E-13 -4.173091587353854E-16 2.565267038792741E-13 4.189412203199549E-15 q -7.604973276496293E-15 2.04481312116003E-14 -1.42332763389853E-12 1.788023014546877E-15 -5.287551150132698E-13 -9.819866662889435E-15 tp 8.763656964858559E-13 -1.42332763389853E-12 7.17295223987132E-9 -5.391910597083447E-13 1.464729606474985E-9 6.799111818228689E-12 node -4.173091587353854E-16 1.788023014546877E-15 -5.391910597083447E-13 2.083280768330558E-9 -2.061924402808868E-9 -1.655595422452199E-12 peri 2.565267038792741E-13 -5.287551150132698E-13 1.464729606474985E-9 -2.061924402808868E-9 2.362557601075636E-9 3.012029123647986E-12 i 4.189412203199549E-15 -9.819866662889435E-15 6.799111818228689E-12 -1.655595422452199E-12 3.012029123647986E-12 2.69731389186135E-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 ] 2021-Jan-27 02:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin