+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .7964925167897285 8.2019e-06   a 53.8845028708303 0.0022453 au q 10.96589956327932 1.5295e-05 au i 161.7117393697979 1.2358e-05 deg node 144.7823776229691 4.1015e-05 deg peri 301.1561922540843 0.00011203 deg M 3.162250768630805 0.00020012 deg tp 2457731.422765192093 (2016-Dec-08.92276519) 0.0029601 TDB period 144475.513790028 395.55 9.0303 0.02472 d yr n .002491771723499127 1.5575e-07 deg/d Q 96.80310617838128 0.0040337 au   Orbit Determination Parameters    # obs. used (total)      128      data-arc span      2161 days (5.92 yr)      first obs. used      2014-05-27      last obs. used      2020-04-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      2      norm. resid. RMS      .54005      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 22:41:58   Additional Information  Earth MOID = 10.0035 au   Jupiter MOID = 5.92486 au   T_jup = -3.598  [ 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 10.2   n/a MPO450833   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-Jan-22 17:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin