+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (A/2019 G4) Classification: Hyperbolic Asteroid          SPK-ID: 3841499 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2458874.5 (2020-Jan-26.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 1.000555802360877 1.5787e-05   a -10540.75344271161 299.37 au q 5.858575648880779 3.1288e-05 au i 138.3818143486466 7.206e-05 deg node 130.4668082397206 6.3102e-05 deg peri 287.872134505329 0.0005668 deg M .0004529310193356857 1.9293e-05 deg tp 2458377.180517344137 (2018-Sep-15.68051734) 0.0045665 TDB period n/a n/a n/a n/a d yr n 9.107445719135572E-7 3.8799e-08 deg/d Q n/a n/a au   Orbit Determination Parameters    # obs. used (total)      29      data-arc span      582 days (1.59 yr)      first obs. used      2019-04-09      last obs. used      2020-11-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      norm. resid. RMS      .54547      source      ORB      producer      Otto Matic      solution date      2020-Nov-17 12:39:52   Additional Information  Earth MOID = 5.11548 au   Jupiter MOID = 2.41725 au  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.73   .70453 21 autocmod 2.8 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2021-Feb-26 09:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin