+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   146169 (2000 SW274) Classification: Main-belt Asteroid          SPK-ID: 2146169 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1746035882198083 4.1435e-08   a 3.140448862139869 2.6661e-08 au q 2.592115222189433 1.2716e-07 au i 16.50314665892412 6.019e-06 deg node 43.2852012725139 1.7142e-05 deg peri 53.23711394561062 2.5438e-05 deg M 149.7146844678243 2.1088e-05 deg tp 2458155.127892790135 (2018-Feb-05.62789279) 0.00011368 TDB period 2032.75957650605 5.57 2.5885e-05 7.087e-08 d yr n .1770991533680414 2.2552e-09 deg/d Q 3.688782502090303 3.1316e-08 au   Orbit Determination Parameters    # obs. used (total)      571      data-arc span      14876 days (40.73 yr)      first obs. used      1978-11-01      last obs. used      2019-07-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55589      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 14:30:16   Additional Information  Earth MOID = 1.64423 au   Jupiter MOID = 1.81989 au   T_jup = 3.124  [ hide covariance matrix ] Orbital Elements at Epoch 2457079.5 (2015-Feb-26.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1766093515602527 4.1461e-08   q 2.583779519587662 1.276e-07 au tp 2456124.240548813947 (2012-Jul-15.74054881) 0.00010322 TDB node 43.3203254468487 1.7132e-05 deg peri 53.01816241497859 2.5265e-05 deg i 16.51552974715385 6.0227e-06 deg   Orbit Determination Parameters    # obs. used (total)      571      data-arc span      14876 days (40.73 yr)      first obs. used      1978-11-01      last obs. used      2019-07-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55589      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 14:30:16   Additional Information  Jupiter MOID = 1.81989 au   T_jup = 3.124  Orbit Covariance (6×6)   e q tp node peri i e 1.719030334507249E-15 -5.212672106560719E-15 2.240407723923191E-13 1.337525533728445E-15 -1.158391647210961E-15 -1.952491205983472E-15 q -5.212672106560719E-15 1.628207713052932E-14 -1.631654931490472E-13 -5.59519015027331E-15 1.344573918215152E-13 5.350832518503519E-15 tp 2.240407723923191E-13 -1.631654931490472E-13 1.065534347090545E-8 -2.971273354305631E-12 1.934264406832478E-9 -8.417582839585052E-12 node 1.337525533728445E-15 -5.59519015027331E-15 -2.971273354305631E-12 2.935089580524073E-10 -2.819386307560075E-10 -2.807061302556123E-11 peri -1.158391647210961E-15 1.344573918215152E-13 1.934264406832478E-9 -2.819386307560075E-10 6.383056553675104E-10 2.542542896469374E-11 i -1.952491205983472E-15 5.350832518503519E-15 -8.417582839585052E-12 -2.807061302556123E-11 2.542542896469374E-11 3.62729083428777E-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 14.3   n/a MPO338247   146169 (2000 SW274)          Discovered 2000-Sep-28 by LINEAR at Socorro Reference: 20070106/Numbers.arc Last Updated: 2007-01-09 [ show close-approach data ] Alternate Designations  2000 SW274 = 1978 VC2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 04:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin