+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   134215 (2005 TD164) Classification: Main-belt Asteroid          SPK-ID: 2134215 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06872966994562804 3.522e-08   a 3.056532956671312 2.7274e-08 au q 2.846458455381358 1.1539e-07 au i 2.734100397157115 4.1957e-06 deg node 255.0046016378264 0.00010071 deg peri 11.99472219107833 0.00010814 deg M 23.02985988491521 3.8005e-05 deg tp 2458875.637839264070 (2020-Jan-27.13783926) 0.00020625 TDB period 1951.830279887095 5.34 2.6125e-05 7.153e-08 d yr n .1844422661691796 2.4687e-09 deg/d Q 3.266607457961266 2.9149e-08 au   Orbit Determination Parameters    # obs. used (total)      482      data-arc span      10309 days (28.22 yr)      first obs. used      1992-03-25      last obs. used      2020-06-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54285      source      ORB      producer      Otto Matic      solution date      2020-Jun-24 02:27:39   Additional Information  Earth MOID = 1.83057 au   Jupiter MOID = 1.78816 au   T_jup = 3.230  [ 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 15.3   n/a MPO436656   diameter diameter 5.633 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.046   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   134215 (2005 TD164)          Discovered 2005-Oct-09 by Spacewatch at Kitt Peak Reference: 20060711/Numbers.arc Last Updated: 2006-07-17 [ show close-approach data ] Alternate Designations  2005 TD164 = 2004 NO26  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-29 12:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin