+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118415 (1999 SV19) Classification: Main-belt Asteroid          SPK-ID: 2118415 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2239928299171667 5.0042e-08   a 3.125912807709011 2.6763e-08 au q 2.425730751835954 1.6367e-07 au i 11.529947327581 5.2907e-06 deg node 149.9488521633684 3.0141e-05 deg peri 191.4384141859407 3.2925e-05 deg M 278.1560431616416 1.7195e-05 deg tp 2459459.431464012116 (2021-Sep-01.93146401) 0.00010038 TDB period 2018.662506392033 5.53 2.5925e-05 7.098e-08 d yr n .1783359025394642 2.2903e-09 deg/d Q 3.826094863582068 3.2758e-08 au   Orbit Determination Parameters    # obs. used (total)      567      data-arc span      8010 days (21.93 yr)      first obs. used      1998-05-23      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58261      source      ORB      producer      Otto Matic      solution date      2020-May-20 20:20:27   Additional Information  Earth MOID = 1.41829 au   Jupiter MOID = 1.58352 au   T_jup = 3.145  [ 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 14.5   n/a MPO260003   diameter diameter 8.723 km 0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.041   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   118415 (1999 SV19)          Discovered 1999-Sep-30 by LINEAR at Socorro Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ show close-approach data ] Alternate Designations  1999 SV19 = 1999 RO221  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-30 17:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin