+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   175003 (2004 EN69) Classification: Main-belt Asteroid          SPK-ID: 2175003 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03825813342357544 5.4652e-08   a 2.762437658087829 1.9534e-08 au q 2.656751949590396 1.4788e-07 au i 3.493191909948308 6.2792e-06 deg node 1.808351988468786 7.0619e-05 deg peri 221.3266420978117 0.0001015 deg M 187.1479971928354 7.5898e-05 deg tp 2460005.709834904652 (2023-Mar-02.20983490) 0.00035577 TDB period 1677.015804607498 4.59 1.7788e-05 4.87e-08 d yr n .2146670287846555 2.277e-09 deg/d Q 2.868123366585263 2.0282e-08 au   Orbit Determination Parameters    # obs. used (total)      276      data-arc span      10298 days (28.19 yr)      first obs. used      1992-10-01      last obs. used      2020-12-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57276      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 11:32:12   Additional Information  Earth MOID = 1.64786 au   Jupiter MOID = 2.10217 au   T_jup = 3.337  [ 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 16.3   n/a MPO433127   175003 (2004 EN69)          Discovered 2004-Mar-15 by Spacewatch at Kitt Peak Reference: 20080122/Numbers.arc Last Updated: 2008-01-28 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-12 07:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin