+ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07840932078039388 3.9614e-08   a 2.590984284444711 1.243e-08 au q 2.387826966548726 1.0019e-07 au i 14.52287624047953 4.9805e-06 deg node 191.3793089584942 1.5093e-05 deg peri 71.27379009298241 3.3647e-05 deg M 236.2621225037453 2.9529e-05 deg tp 2459524.095320482658 (2021-Nov-05.59532048) 0.0001252 TDB period 1523.335612245831 4.17 1.0962e-05 3.001e-08 d yr n .236323497662644 1.7006e-09 deg/d Q 2.794141602340695 1.3404e-08 au   Orbit Determination Parameters    # obs. used (total)      1559      data-arc span      11365 days (31.12 yr)      first obs. used      1989-10-03      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5033      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 20:51:17   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 ] 2021-Jan-21 10:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin