+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   49580 (1999 CL126) Classification: Main-belt Asteroid          SPK-ID: 2049580 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1363517302632848 4.4621e-08   a 2.732877275679703 1.5528e-08 au q 2.360244730543563 1.2394e-07 au i 13.7505464240161 5.7556e-06 deg node 54.0164627289949 1.9479e-05 deg peri 26.72752303097834 2.7972e-05 deg M 310.3827408121891 1.9339e-05 deg tp 2459227.935833548442 (2021-Jan-13.43583355) 8.886e-05 TDB period 1650.169747738767 4.52 1.4064e-05 3.851e-08 d yr n .2181593745087796 1.8593e-09 deg/d Q 3.105509820815842 1.7645e-08 au   Orbit Determination Parameters    # obs. used (total)      1190      data-arc span      7949 days (21.76 yr)      first obs. used      1999-02-11      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55246      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:28:17   Additional Information  Earth MOID = 1.38273 au   Jupiter MOID = 2.22985 au   T_jup = 3.299  [ 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 14.3   n/a MPO400483   diameter diameter 4.112 km 1.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.288   0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   49580 (1999 CL126)          Discovered 1999-Feb-11 by LINEAR at Socorro Reference: 20021120/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 CL126 = 2000 JL62 = 2001 OL53  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-19 19:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin