+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   487221 (2014 OT388) Classification: Main-belt Asteroid          SPK-ID: 2487221 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1353564211749692 1.2027e-07   a 2.551200274122318 3.6265e-08 au q 2.205878935316521 3.0303e-07 au i 1.677788148605366 5.2888e-06 deg node 228.6837024378247 0.00068861 deg peri 28.09476128043742 0.00069304 deg M 198.4390408165181 0.00010091 deg tp 2459668.458034876506 (2022-Mar-29.95803488) 0.00041927 TDB period 1488.384902954495 4.07 3.1735e-05 8.689e-08 d yr n .2418729182789933 5.1572e-09 deg/d Q 2.896521612928116 4.1173e-08 au   Orbit Determination Parameters    # obs. used (total)      71      data-arc span      5366 days (14.69 yr)      first obs. used      2005-03-11      last obs. used      2019-11-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .63708      source      ORB      producer      Otto Matic      solution date      2019-Dec-14 23:58:51   Additional Information  Earth MOID = 1.19107 au   Jupiter MOID = 2.14925 au   T_jup = 3.427  [ 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 17.7   n/a MPO456348   487221 (2014 OT388)          Discovered 2009-Feb-20 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2017-03-14 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-11 13:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin