+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .7973814942455556 6.3773e-06   a 54.11867602680979 0.0017627 au q 10.96544526996107 1.2396e-05 au i 161.7143586589741 1.0758e-05 deg node 144.7802819383751 2.8705e-05 deg peri 301.1626442353082 9.7251e-05 deg M 3.635290730403872 0.00018177 deg tp 2457732.061304762031 (2016-Dec-09.56130476) 0.0026341 TDB period 145418.3363834943 398.13 7.1048 0.01945 d yr n .002475616273388076 1.2095e-07 deg/d Q 97.27190678365852 0.0031683 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-May-04 13:21:49   Additional Information  Earth MOID = 10.0023 au   Jupiter MOID = 5.9233 au   T_jup = -3.600  [ 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-May-11 13:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin