+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19580 (1999 ND) Classification: Main-belt Asteroid          SPK-ID: 2019580 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08086248796507162 3.8513e-08   a 2.838857962294424 1.5971e-08 au q 2.609300844483843 1.0503e-07 au i 18.12616154166976 4.2843e-06 deg node 106.8555468235569 1.8257e-05 deg peri 198.460762750367 4.1455e-05 deg M 118.7038594215926 3.7725e-05 deg tp 2458424.428670607810 (2018-Nov-01.92867061) 0.00018289 TDB period 1747.084547981127 4.78 1.4743e-05 4.036e-08 d yr n .206057571979561 1.7388e-09 deg/d Q 3.068415080105005 1.7262e-08 au   Orbit Determination Parameters    # obs. used (total)      1532      data-arc span      10695 days (29.28 yr)      first obs. used      1990-10-17      last obs. used      2020-01-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53223      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 22:51:08   Additional Information  Earth MOID = 1.59795 au   Jupiter MOID = 2.14203 au   T_jup = 3.232  [ 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 13.3   n/a MPO502316   diameter diameter 12.786 km 0.423 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.062   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   19580 (1999 ND)          Discovered 1999-Jul-04 by Korlevic, K. at Visnjan Reference: 20001211/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 ND = 1990 UB14 = 1998 GQ5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-07 06:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin