+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   13946 (1990 OK3) Classification: Main-belt Asteroid          SPK-ID: 2013946 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .21588750048233 4.3042e-08   a 2.408420808469281 7.7103e-09 au q 1.888472860019215 1.0436e-07 au i 3.090100094318378 4.4671e-06 deg node 127.7548609928351 7.2296e-05 deg peri 205.0814322512682 7.2729e-05 deg M 341.8555314848173 8.5792e-06 deg tp 2459069.307968168596 (2020-Aug-07.80796817) 3.2618e-05 TDB period 1365.202211349823 3.74 6.5558e-06 1.795e-08 d yr n .2636971995848553 1.2663e-09 deg/d Q 2.928368756919346 9.3748e-09 au   Orbit Determination Parameters    # obs. used (total)      1507      data-arc span      10965 days (30.02 yr)      first obs. used      1990-07-27      last obs. used      2020-08-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53301      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 00:48:00   Additional Information  Earth MOID = .878615 au   Jupiter MOID = 2.44092 au   T_jup = 3.487  [ 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 14.6   n/a MPO473956   diameter diameter 3.297 km 0.227 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.282   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   13946 (1990 OK3)          Discovered 1990-Jul-27 by Holt, H. E. at Palomar Reference: 20000320/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 OK3 = 1994 TM1 = 2000 CR34  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-26 01:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin