+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   187932 (2001 EX23) Classification: Main-belt Asteroid          SPK-ID: 2187932 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1345469505398625 3.6182e-08   a 2.232093446392244 7.3377e-09 au q 1.931772079860156 8.1399e-08 au i 5.110862542878801 3.6572e-06 deg node 160.9579506754307 4.4984e-05 deg peri 64.36705915045356 4.7092e-05 deg M 291.0125314131482 1.356e-05 deg tp 2459433.918188314218 (2021-Aug-07.41818831) 4.6113e-05 TDB period 1218.05524270438 3.33 6.0062e-06 1.644e-08 d yr n .295553097576028 1.4574e-09 deg/d Q 2.532414812924333 8.3249e-09 au   Orbit Determination Parameters    # obs. used (total)      506      data-arc span      10960 days (30.01 yr)      first obs. used      1991-03-13      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5703      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:57:24   Additional Information  Earth MOID = .928356 au   Jupiter MOID = 2.44978 au   T_jup = 3.624  [ 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 16.8   n/a MPO440044   187932 (2001 EX23)          Discovered 2001-Mar-15 by NEAT at Haleakala Reference: 20080618/Numbers.arc Last Updated: 2008-06-20 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-22 21:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin