+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   452673 (2005 WQ146) Classification: Main-belt Asteroid          SPK-ID: 2452673 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06863742360269909 7.446e-08   a 2.856678836053107 3.2456e-08 au q 2.660603760686065 2.2089e-07 au i 4.685901413596945 6.3696e-06 deg node 281.8223590792078 9.6607e-05 deg peri 121.2474837940133 0.00011479 deg M 26.25596821002744 5.9281e-05 deg tp 2458871.877753715358 (2020-Jan-23.37775372) 0.00029007 TDB period 1763.561270796602 4.83 3.0055e-05 8.229e-08 d yr n .2041324029742317 3.4788e-09 deg/d Q 3.05275391142015 3.4683e-08 au   Orbit Determination Parameters    # obs. used (total)      110      data-arc span      5548 days (15.19 yr)      first obs. used      2004-08-20      last obs. used      2019-10-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4797      source      ORB      producer      Otto Matic      solution date      2019-Nov-08 16:50:24   Additional Information  Earth MOID = 1.6733 au   Jupiter MOID = 2.23379 au   T_jup = 3.295  [ hide covariance matrix ] Orbital Elements at Epoch 2457496.5 (2016-Apr-18.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06694023370538296 7.5363e-08   q 2.665539948909484 2.2297e-07 au tp 2457097.256019164416 (2015-Mar-15.75601916) 0.00029448 TDB node 282.0975614333922 9.675e-05 deg peri 118.9265756078164 0.00011567 deg i 4.68155939794429 6.3652e-06 deg   Orbit Determination Parameters    # obs. used (total)      110      data-arc span      5548 days (15.19 yr)      first obs. used      2004-08-20      last obs. used      2019-10-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4797      source      ORB      producer      Otto Matic      solution date      2019-Nov-08 16:50:24   Additional Information  Jupiter MOID = 2.23379 au   T_jup = 3.295  Orbit Covariance (6×6)   e q tp node peri i e 5.679605038200653E-15 -1.665376222907552E-14 -8.577869644525931E-12 -5.097001451797972E-15 -2.006129804749604E-12 -5.420936429087068E-15 q -1.665376222907552E-14 4.971664607203634E-14 2.497888026412387E-11 1.684450321034763E-14 5.886589957425954E-12 1.76910468693545E-14 tp -8.577869644525931E-12 2.497888026412387E-11 8.672108334427016E-8 1.116085060370568E-10 1.874246532083894E-8 2.164512665239387E-11 node -5.097001451797972E-15 1.684450321034763E-14 1.116085060370568E-10 9.360485590039482E-9 -9.304478233577629E-9 7.669442425593651E-13 peri -2.006129804749604E-12 5.886589957425954E-12 1.874246532083894E-8 -9.304478233577629E-9 1.337895904738054E-8 4.00478449160262E-12 i -5.420936429087068E-15 1.76910468693545E-14 2.164512665239387E-11 7.669442425593651E-13 4.00478449160262E-12 4.051561182784349E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.8   n/a MPO495257   452673 (2005 WQ146)          Discovered 2005-Nov-25 by Spacewatch at Kitt Peak Reference: Last Updated: 2016-01-04 Alternate Designations  2005 WQ146 = 2004 QH6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-23 06:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin