+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 HB) Classification: Apollo [NEO]          SPK-ID: 54016542 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2458956.5 (2020-Apr-17.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5868851884158213 0.0024639   a 2.039615756759102 0.010975 au q .8425954790576583 0.0004917 au i .9465407122641255 0.0025685 deg node 256.8723383587233 0.09127 deg peri 9.435388857786728 0.082283 deg M 345.3514202464517 0.13189 deg tp 2458999.792631381577 (2020-May-30.29263138) 0.040406 TDB period 1063.94937663445 2.91 8.5876 0.02351 d yr n .3383619633659397 0.0027311 deg/d Q 3.236636034460545 0.017416 au   Orbit Determination Parameters    # obs. used (total)      25      data-arc span      1 day      first obs. used      2020-04-16      last obs. used      2020-04-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      8      norm. resid. RMS      .27591      source      ORB      producer      Otto Matic      solution date      2020-Apr-17 18:12:06   Additional Information  Earth MOID = .0120176 au   Jupiter MOID = 1.87975 au   T_jup = 3.565  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 25.152   .44003 1 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-24 23:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin