+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   452407 (2002 SW) Classification: Mars-crossing Asteroid          SPK-ID: 2452407 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4095976171785926 1.0641e-07   a 2.609968896717248 1.3836e-08 au q 1.540931855711623 2.7249e-07 au i 26.96493105929848 1.0709e-05 deg node 314.2040933146454 1.0741e-05 deg peri 77.00808258803686 2.2957e-05 deg M 71.97897881854935 1.223e-05 deg tp 2458692.568154522629 (2019-Jul-28.06815452) 5.1468e-05 TDB period 1540.108878889588 4.22 1.2247e-05 3.353e-08 d yr n .2337497075268851 1.8588e-09 deg/d Q 3.679005937722874 1.9504e-08 au   Orbit Determination Parameters    # obs. used (total)      335      data-arc span      6342 days (17.36 yr)      first obs. used      2002-09-23      last obs. used      2020-02-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51482      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 11:35:16   Additional Information  Earth MOID = .735047 au   Jupiter MOID = 2.57972 au   T_jup = 3.145  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.4   n/a MPO503595   452407 (2002 SW)          Discovered 2002-Sep-23 by NEAT at Palomar Reference: Last Updated: 2016-01-04 Alternate Designations  2002 SW = 2002 UW  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-11 15:44 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin