+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15485 (1999 CY53) Classification: Main-belt Asteroid          SPK-ID: 2015485 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1456412851530553 3.3151e-08   a 3.13012236714718 1.8884e-08 au q 2.674247322909541 1.092e-07 au i 2.652270633592525 3.8571e-06 deg node 94.18458973507728 0.00011915 deg peri 18.78738553293558 0.00012078 deg M 336.4994484284107 2.0204e-05 deg tp 2459132.543174107600 (2020-Oct-10.04317411) 0.00011393 TDB period 2022.741574125581 5.54 1.8304e-05 5.011e-08 d yr n .1779762697346179 1.6106e-09 deg/d Q 3.585997411384819 2.1634e-08 au   Orbit Determination Parameters    # obs. used (total)      1380      data-arc span      14114 days (38.64 yr)      first obs. used      1982-01-30      last obs. used      2020-09-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54526      source      ORB      producer      Otto Matic      solution date      2020-Oct-22 16:40:17   Additional Information  Earth MOID = 1.69097 au   Jupiter MOID = 1.52244 au   T_jup = 3.195  [ 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 13.7   n/a MPO452389   diameter diameter 10.111 km 0.238 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.069   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15485 (1999 CY53)          Discovered 1999-Feb-10 by LINEAR at Socorro Reference: 20000621/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 CY53 = 1982 BR15 = 1997 WK54  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-23 21:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin