+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1457020306612846 3.0954e-08   a 3.130153137595745 1.4949e-08 au q 2.674083469167253 9.8963e-08 au i 2.652103776489105 3.457e-06 deg node 94.18168514860005 0.00010056 deg peri 18.67493031291562 0.00010207 deg M 47.06156108097939 1.6092e-05 deg tp 2459132.070056019677 (2020-Oct-09.57005602) 9.046e-05 TDB period 2022.771400827813 5.54 1.4491e-05 3.967e-08 d yr n .1779736453919959 1.275e-09 deg/d Q 3.586222806024236 1.7127e-08 au   Orbit Determination Parameters    # obs. used (total)      1758      data-arc span      14374 days (39.35 yr)      first obs. used      1982-01-30      last obs. used      2021-06-08      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51424      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 03:50:54   Additional Information  Earth MOID = 1.69118 au   Jupiter MOID = 1.52231 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 13.79   n/a MPCxxxxx   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 ] 2021-Aug-01 17:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin