+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   437732 (2014 DE138) Classification: Main-belt Asteroid          SPK-ID: 2437732 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1835747592389644 3.9749e-08   a 2.679975962570674 3.9181e-08 au q 2.18800002047555 1.102e-07 au i 12.70784453462263 7.5129e-06 deg node 158.9206118514801 2.1354e-05 deg peri 266.9476983015294 3.043e-05 deg M 231.8121320173111 2.2762e-05 deg tp 2459571.109763755927 (2021-Dec-22.60976376) 0.00010658 TDB period 1602.487959155968 4.39 3.5142e-05 9.621e-08 d yr n .2246506739368029 4.9265e-09 deg/d Q 3.171951904665796 4.6373e-08 au   Orbit Determination Parameters    # obs. used (total)      164      data-arc span      4337 days (11.87 yr)      first obs. used      2007-06-21      last obs. used      2019-05-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .71004      source      ORB      producer      Otto Matic      solution date      2019-May-30 10:10:41   Additional Information  Earth MOID = 1.2445 au   Jupiter MOID = 2.27537 au   T_jup = 3.318  [ 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 16.6   n/a MPO437698   437732 (2014 DE138)          Discovered 2008-Nov-19 by CSS at Catalina Reference: Last Updated: 2015-06-04 Alternate Designations  2014 DE138 = 2008 YR166  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Jul-10 00:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin