+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08079103211344955 2.5997e-08   a 2.839350794565599 1.4288e-08 au q 2.609956713340501 7.1401e-08 au i 18.12548656727886 3.2647e-07 deg node 106.8560639891861 2.1548e-06 deg peri 198.5949792696534 7.4034e-06 deg M 159.7623345192021 1.0666e-05 deg tp 2458424.969465244252 (2018-Nov-02.46946524) 4.7641e-05 TDB period 1747.539514568829 4.78 1.3191e-05 3.611e-08 d yr n .2060039255185729 1.555e-09 deg/d Q 3.068744875790697 1.5443e-08 au   Orbit Determination Parameters    # obs. used (total)      1875      data-arc span      11095 days (30.38 yr)      first obs. used      1990-10-17      last obs. used      2021-03-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50617      source      ORB      producer      Otto Matic      solution date      2021-Mar-17 02:19:53   Additional Information  Earth MOID = 1.5967 au   Jupiter MOID = 2.14138 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 13.35   n/a E2021B10   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 ] 2021-Apr-12 20:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin