+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   434329 (2004 JM13) Classification: Main-belt Asteroid          SPK-ID: 2434329 [ 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 .3325485381224947 1.9577e-07   a 2.630583032310406 8.7579e-08 au q 1.755786490505742 5.6888e-07 au i 29.05054198915745 1.3358e-05 deg node 90.76224568455423 1.8304e-05 deg peri 81.3350520977386 4.2283e-05 deg M 312.9069800067468 6.9339e-05 deg tp 2459204.359281758366 (2020-Dec-20.85928176) 0.00031007 TDB period 1558.391061850061 4.27 7.7824e-05 2.131e-07 d yr n .2310074850998068 1.1536e-08 deg/d Q 3.505379574115071 1.167e-07 au   Orbit Determination Parameters    # obs. used (total)      320      data-arc span      9102 days (24.92 yr)      first obs. used      1995-02-26      last obs. used      2020-01-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54268      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 09:47:56   Additional Information  Earth MOID = .978114 au   Jupiter MOID = 2.31449 au   T_jup = 3.150  [ 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 15.6   n/a MPO495162   434329 (2004 JM13)          Discovered 2004-May-14 by NEAT at Palomar Reference: Last Updated: 2015-06-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-11 04:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin