+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120198 (2004 DT42) Classification: Inner Main-belt Asteroid          SPK-ID: 2120198 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1170717918536369 3.544e-08   a 1.966304291339304 7.1455e-09 au q 1.736105524622716 7.279e-08 au i 22.1976957712037 5.9584e-06 deg node 182.7706957875006 9.5452e-06 deg peri 293.5297581816296 2.9391e-05 deg M 12.75240443556645 2.5788e-05 deg tp 2458964.824990754061 (2020-Apr-25.32499075) 7.2134e-05 TDB period 1007.104455746319 2.76 5.4897e-06 1.503e-08 d yr n .3574604381362017 1.9485e-09 deg/d Q 2.196503058055892 7.9821e-09 au   Orbit Determination Parameters    # obs. used (total)      719      data-arc span      9813 days (26.87 yr)      first obs. used      1993-03-25      last obs. used      2020-02-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57858      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 06:16:34   Additional Information  Earth MOID = .820198 au   Jupiter MOID = 2.90637 au   T_jup = 3.777  [ 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 16.5   n/a MPO338102   120198 (2004 DT42)          Discovered 2004-Feb-20 by NEAT at Haleakala Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-30 16:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin