+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 HL1) Classification: Apollo [NEO]          SPK-ID: 54016586 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2458961.5 (2020-Apr-22.0) TDB Reference: JPL 6 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6136019512451029 0.0014606   a 2.449434609771644 0.0090033 au q .9464567537684762 9.8726e-05 au i 1.415346179680742 0.0021084 deg node 241.8820466891401 0.011748 deg peri 19.73267207458791 0.0054758 deg M 349.6899908624108 0.059958 deg tp 2459001.600865976672 (2020-Jun-01.10086598) 0.012115 TDB period 1400.222983214312 3.83 7.7201 0.02114 d yr n .2571019075644611 0.0014175 deg/d Q 3.952412465774811 0.014528 au   Orbit Determination Parameters    # obs. used (total)      47      data-arc span      12 days      first obs. used      2020-04-16      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      8      norm. resid. RMS      .43176      source      ORB      producer      Otto Matic      solution date      2020-Apr-28 07:10:57   Additional Information  Earth MOID = .00586312 au   Jupiter MOID = 1.14831 au   T_jup = 3.208  [ 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 25.268   .33707 6 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2020-Oct-24 12:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin