+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   201938 (2004 EN24) Classification: Inner Main-belt Asteroid          SPK-ID: 2201938 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07344995892407116 6.9805e-08   a 1.978503285475731 7.969e-09 au q 1.833182300426399 1.3678e-07 au i 22.39657950605474 5.6339e-06 deg node 57.85022564967651 1.0381e-05 deg peri 178.850886339111 3.8201e-05 deg M 246.8777839711598 4.0734e-05 deg tp 2459319.910356867425 (2021-Apr-15.41035687) 0.00011538 TDB period 1016.491123573438 2.78 6.1413e-06 1.681e-08 d yr n .3541595117273949 2.1397e-09 deg/d Q 2.123824270525063 8.5543e-09 au   Orbit Determination Parameters    # obs. used (total)      535      data-arc span      6927 days (18.97 yr)      first obs. used      2001-02-05      last obs. used      2020-01-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5959      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 00:14:43   Additional Information  Earth MOID = .821365 au   Jupiter MOID = 2.87798 au   T_jup = 3.767  [ 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 16.5   n/a MPO338514   201938 (2004 EN24)          Discovered 2004-Mar-09 by CSS at Catalina Reference: 20081212/Numbers.arc Last Updated: 2008-12-12 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-19 19:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin