+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2015 QW23) Classification: TransNeptunian Object          SPK-ID: 54017352 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2457259.5 (2015-Aug-25.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5764718177382216 2.5911   a 32.9366156542842 231.36 au q 13.94958495791382 179.16 au i 28.61057673708491 174.28 deg node 102.5691865815326 140.27 deg peri 18.96786917200409 6701.2 deg M 186.6583624171425 20676 deg tp 2490503.806607906910 (2106-Sep-01.30660791) 3.6164e+06 TDB period 69042.55980116602 189.03 7.2749e+05 1992 d yr n .005214175155683033 0.054941 deg/d Q 51.92364635065458 364.74 au   Orbit Determination Parameters    # obs. used (total)      5      data-arc span      18 days      first obs. used      2015-08-18      last obs. used      2015-09-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      9      norm. resid. RMS      .11719      source      ORB      producer      Otto Matic      solution date      2020-Jun-20 04:45:16   Additional Information  Earth MOID = 12.979 au   Jupiter MOID = 8.77273 au   T_jup = 3.768  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 5.8813   .00012277 1 autocmod 2.8 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2021-Jan-17 19:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin