+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   487594 (2015 KT40) Classification: Mars-crossing Asteroid          SPK-ID: 2487594 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | 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 .3523323894194927 4.4473e-08   a 2.553000725508822 3.3319e-08 au q 1.6534958797006 1.0887e-07 au i 7.283207040373762 1.2233e-05 deg node 78.14758488031781 3.8505e-05 deg peri 276.9360481217767 6.6135e-05 deg M 59.68557879473497 6.3295e-05 deg tp 2458953.474524931554 (2020-Apr-13.97452493) 0.00026113 TDB period 1489.960771436554 4.08 2.9168e-05 7.986e-08 d yr n .2416170995246432 4.7299e-09 deg/d Q 3.452505571317044 4.5058e-08 au   Orbit Determination Parameters    # obs. used (total)      85      data-arc span      3516 days (9.63 yr)      first obs. used      2011-05-24      last obs. used      2021-01-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53223      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 18:32:50   Additional Information  Earth MOID = .667499 au   Jupiter MOID = 2.04691 au   T_jup = 3.339  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.3   n/a MPO477318   487594 (2015 KT40)          Discovered 2011-May-24 by Pan-STARRS 1 at Haleakala Reference: Last Updated: 2017-03-14 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-26 10:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin