+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2019 HQ) Classification: Aten [NEO]          SPK-ID: 3841534 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 6 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3486977600285365 0.00011451   a .7650973833728664 5.715e-05 au q .4983096395870534 0.00012483 au i 10.97382414548124 0.0055619 deg node 35.55015853610387 0.00020147 deg peri 14.39563590019751 0.00067011 deg M 316.1656783225285 0.094399 deg tp 2459230.263588498575 (2021-Jan-15.76358850) 0.067432 TDB period 244.4406905238798 0.67 0.027388 7.498e-05 d yr n 1.472749889670399 0.00016501 deg/d Q 1.031885127158679 7.7078e-05 au   Orbit Determination Parameters    # obs. used (total)      92      data-arc span      8 days      first obs. used      2019-04-24      last obs. used      2019-05-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      6      norm. resid. RMS      .35863      source      ORB      producer      Otto Matic      solution date      2019-May-03 07:28:01   Additional Information  Earth MOID = .00630016 au   Jupiter MOID = 4.32084 au   T_jup = 7.507  [ 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 26.2   .4028 MPO467576 autocmod 2.6q [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-13 18:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin