+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   117494 (2005 CU19) Classification: Main-belt Asteroid          SPK-ID: 2117494 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03915355434133339 5.6982e-08   a 2.960685148298198 2.4094e-08 au q 2.844763801456726 1.6657e-07 au i 10.1906121267044 6.1101e-06 deg node 160.6238655674335 2.8267e-05 deg peri 228.3016567949364 6.7642e-05 deg M 140.972951186134 6.085e-05 deg tp 2458471.848177729308 (2018-Dec-19.34817773) 0.00031507 TDB period 1860.744588308301 5.09 2.2714e-05 6.219e-08 d yr n .1934709375279144 2.3617e-09 deg/d Q 3.076606495139671 2.5037e-08 au   Orbit Determination Parameters    # obs. used (total)      481      data-arc span      7177 days (19.65 yr)      first obs. used      2001-05-24      last obs. used      2021-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57345      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 09:16:58   Additional Information  Earth MOID = 1.85474 au   Jupiter MOID = 2.10279 au   T_jup = 3.241  [ hide covariance matrix ] Orbital Elements at Epoch 2456974.5 (2014-Nov-13.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03580778251849229 5.6577e-08   q 2.855849642471939 1.6416e-07 au tp 2456605.059488612793 (2013-Nov-08.55948861) 0.00034951 TDB node 160.6759142530326 2.8296e-05 deg peri 227.4306557692706 7.3184e-05 deg i 10.18128956839185 6.1032e-06 deg   Orbit Determination Parameters    # obs. used (total)      481      data-arc span      7177 days (19.65 yr)      first obs. used      2001-05-24      last obs. used      2021-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57345      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 09:16:58   Additional Information  Jupiter MOID = 2.10279 au   T_jup = 3.241  Orbit Covariance (6×6)   e q tp node peri i e 3.20092563873433E-15 -9.197820701813879E-15 -3.460141398378172E-12 1.216223070123719E-14 -7.027640322953808E-13 -1.892413647681965E-15 q -9.197820701813879E-15 2.694896523545281E-14 8.985887992396267E-12 -3.537139643011687E-14 1.846210244697401E-12 5.892549859515832E-15 tp -3.460141398378172E-12 8.985887992396267E-12 1.221540685372505E-7 3.882057345861776E-11 2.36157296247918E-8 1.602209692397884E-11 node 1.216223070123719E-14 -3.537139643011687E-14 3.882057345861776E-11 8.00675214044076E-10 -7.805737242283848E-10 4.653402906793958E-11 peri -7.027640322953808E-13 1.846210244697401E-12 2.36157296247918E-8 -7.805737242283848E-10 5.355935397884868E-9 -4.268046469816251E-11 i -1.892413647681965E-15 5.892549859515832E-15 1.602209692397884E-11 4.653402906793958E-11 -4.268046469816251E-11 3.724899104070328E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.27   n/a E2021B55   diameter diameter 3.690 km 0.869 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.108   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   117494 (2005 CU19)          Discovered 2005-Feb-02 by CSS at Catalina Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  2005 CU19 = 2003 WR44  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-02 18:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin