+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   523800 (2017 KZ31) Classification: TransNeptunian Object          SPK-ID: 2523800 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .7980781705802497 6.3792e-06   a 54.29861031969874 0.001775 au q 10.9640747307037 1.2396e-05 au i 161.7155189693326 1.0755e-05 deg node 144.7796854052751 2.8705e-05 deg peri 301.1577216670972 9.7182e-05 deg M 4.099252285496846 0.00020513 deg tp 2457732.383810709271 (2016-Dec-09.88381071) 0.0026308 TDB period 146144.1712831909 400.12 7.1662 0.01962 d yr n .002463320957921818 1.2079e-07 deg/d Q 97.63314590869378 0.0031917 au   Orbit Determination Parameters    # obs. used (total)      154      data-arc span      2500 days (6.84 yr)      first obs. used      2014-05-27      last obs. used      2021-03-31      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      2      norm. resid. RMS      .54728      source      ORB      producer      Otto Matic      solution date      2021-Jul-09 08:51:06   Additional Information  Earth MOID = 10.0023 au   Jupiter MOID = 5.92125 au   T_jup = -3.601  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 10.34   n/a MPCxxxxx   523800 (2017 KZ31)          Discovered 2015-Jun-23 by Pan-STARRS 1 at Haleakala Reference: Last Updated: 2018-10-01 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2021-Jul-25 21:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin