+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   26564 (2000 EC46) Classification: Main-belt Asteroid          SPK-ID: 2026564 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07840932112069635 4.0095e-08   a 2.590984284486055 1.2553e-08 au q 2.387826965705111 1.0123e-07 au i 14.52287574395598 5.045e-06 deg node 191.379308159733 1.5128e-05 deg peri 71.27379173249616 3.4085e-05 deg M 236.2621216271692 2.9855e-05 deg tp 2459524.095324204411 (2021-Nov-05.59532420) 0.0001265 TDB period 1523.335612282293 4.17 1.1071e-05 3.031e-08 d yr n .2363234976569874 1.7175e-09 deg/d Q 2.794141603267 1.3538e-08 au   Orbit Determination Parameters    # obs. used (total)      1522      data-arc span      11080 days (30.34 yr)      first obs. used      1989-10-03      last obs. used      2020-02-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50438      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 00:47:32   Additional Information  Earth MOID = 1.41839 au   Jupiter MOID = 2.26991 au   T_jup = 3.370  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.1   n/a MPO452541   diameter diameter 4.219 km 0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.273   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   26564 (2000 EC46)          Discovered 2000-Mar-09 by LINEAR at Socorro Reference: 20010705/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2000 EC46 = 1989 TA13 = 1993 RY5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-11 16:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin