+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   160729 (2000 QC201) Classification: Main-belt Asteroid          SPK-ID: 2160729 [ 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 .1771779559968007 3.4896e-08   a 2.328322446425847 1.0792e-08 au q 1.915795034466645 8.1134e-08 au i 3.86840238981753 4.0494e-06 deg node 36.0988675542463 6.1238e-05 deg peri 340.5581267164907 6.2386e-05 deg M 174.2819126950662 1.1837e-05 deg tp 2458372.278303605212 (2018-Sep-10.77830361) 4.1635e-05 TDB period 1297.666563356038 3.55 9.0221e-06 2.47e-08 d yr n .2774210341591636 1.9288e-09 deg/d Q 2.740849858385049 1.2704e-08 au   Orbit Determination Parameters    # obs. used (total)      461      data-arc span      10703 days (29.30 yr)      first obs. used      1991-01-08      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53951      source      ORB      producer      Otto Matic      solution date      2020-May-21 01:35:23   Additional Information  Earth MOID = .917952 au   Jupiter MOID = 2.72088 au   T_jup = 3.549  [ hide covariance matrix ] Orbital Elements at Epoch 2457132.5 (2015-Apr-20.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1763471902157382 3.4852e-08   q 1.918068579508491 8.0975e-08 au tp 2457071.865725098027 (2015-Feb-18.36572510) 4.121e-05 TDB node 36.13692507845973 6.1293e-05 deg peri 340.089400974615 6.2455e-05 deg i 3.867624647365674 4.0457e-06 deg   Orbit Determination Parameters    # obs. used (total)      461      data-arc span      10703 days (29.30 yr)      first obs. used      1991-01-08      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53951      source      ORB      producer      Otto Matic      solution date      2020-May-21 01:35:23   Additional Information  Jupiter MOID = 2.72088 au   T_jup = 3.549  Orbit Covariance (6×6)   e q tp node peri i e 1.214651685878969E-15 -2.805231134187302E-15 1.591657428120101E-14 6.761261076127018E-15 -1.995559109352348E-14 2.930415448961516E-16 q -2.805231134187302E-15 6.556983033576595E-15 -4.246899469916663E-14 -1.681411906247694E-14 4.538147488450194E-14 -5.974003905183696E-16 tp 1.591657428120101E-14 -4.246899469916663E-14 1.698266016557327E-9 -7.97965380659217E-13 5.087273406083528E-10 9.335311840782758E-13 node 6.761261076127018E-15 -1.681411906247694E-14 -7.97965380659217E-13 3.756798602472413E-9 -3.748333026017836E-9 -6.005358127545936E-12 peri -1.995559109352348E-14 4.538147488450194E-14 5.087273406083528E-10 -3.748333026017836E-9 3.900664873225646E-9 6.244211309950873E-12 i 2.930415448961516E-16 -5.974003905183696E-16 9.335311840782758E-13 -6.005358127545936E-12 6.244211309950873E-12 1.636798072315764E-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 16.8   n/a MPO412928   160729 (2000 QC201)          Discovered 2000-Aug-29 by LINEAR at Socorro Reference: 20070828/Numbers.arc Last Updated: 2007-08-30 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-04 19:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin