+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1460141893055575 3.6068e-08   a 2.548980797746833 1.1997e-08 au q 2.176793433008396 9.4833e-08 au i 7.03578104255119 4.5498e-06 deg node 73.41493027386369 3.7109e-05 deg peri 202.7138048185511 4.1657e-05 deg M 1.724216205194796 2.0755e-05 deg tp 2459193.380696716544 (2020-Dec-09.88069672) 8.5681e-05 TDB period 1486.443042538525 4.07 1.0494e-05 2.873e-08 d yr n .2421888963772183 1.7098e-09 deg/d Q 2.92116816248527 1.3749e-08 au   Orbit Determination Parameters    # obs. used (total)      704      data-arc span      7317 days (20.03 yr)      first obs. used      2000-06-07      last obs. used      2020-06-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52936      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 17:58:14   Additional Information  Earth MOID = 1.16059 au   Jupiter MOID = 2.18772 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 15.91   n/a E2021B55   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 ] 2021-Mar-05 12:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin