+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120290 (2004 HB62) Classification: Main-belt Asteroid          SPK-ID: 2120290 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1457397210970303 3.6351e-08   a 2.548189341507906 1.2719e-08 au q 2.176816937574118 9.5197e-08 au i 7.036605910860227 4.5834e-06 deg node 73.41583995605269 3.8131e-05 deg peri 202.7411618188507 4.2583e-05 deg M 313.2414474928265 2.0926e-05 deg tp 2459193.476545020384 (2020-Dec-09.97654502) 8.6864e-05 TDB period 1485.750787445363 4.07 1.1124e-05 3.046e-08 d yr n .2423017393239906 1.8141e-09 deg/d Q 2.919561745441694 1.4572e-08 au   Orbit Determination Parameters    # obs. used (total)      661      data-arc span      7264 days (19.89 yr)      first obs. used      2000-06-07      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53831      source      ORB      producer      Otto Matic      solution date      2020-May-20 20:36:22   Additional Information  Earth MOID = 1.16245 au   Jupiter MOID = 2.19024 au   T_jup = 3.416  [ 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 15.8   n/a MPO436580   120290 (2004 HB62)          Discovered 2004-Apr-29 by LINEAR at Socorro Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Nov-01 01:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin