+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2017 KX4) Classification: Apollo [NEO]          SPK-ID: 3774721 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2457897.5 (2017-May-24.0) TDB Reference: JPL 4 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3456482707894427 0.0016816   a 1.153573999933594 0.0014782 au q .7548431416288865 0.00097262 au i 1.440545811619458 0.0078928 deg node 221.948181806298 0.011717 deg peri 116.6474082921205 0.013267 deg M 302.2594666721052 0.18653 deg tp 2457970.084669828062 (2017-Aug-04.58466983) 0.094967 TDB period 452.5500481561801 1.24 0.86983 0.002381 d yr n .7954921261565306 0.001529 deg/d Q 1.552304858238301 0.0019891 au   Orbit Determination Parameters    # obs. used (total)      54      data-arc span      7 days      first obs. used      2017-05-22      last obs. used      2017-05-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      8      norm. resid. RMS      .54105      source      ORB      producer      Otto Matic      solution date      2017-May-29 06:18:23   Additional Information  Earth MOID = .00928124 au   Jupiter MOID = 3.82422 au   T_jup = 5.394  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 24.4   n/a MPO410043   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-18 08:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin