+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17087 (1999 JC19) Classification: Main-belt Asteroid          SPK-ID: 2017087 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .144304511480838 4.29e-08   a 3.130140388896223 1.7419e-08 au q 2.678447009210113 1.3766e-07 au i 5.187902349911792 4.532e-06 deg node 10.53467489307728 4.1866e-05 deg peri 323.8236082045507 4.3458e-05 deg M 180.8036089348159 1.2275e-05 deg tp 2460007.364223671039 (2023-Mar-03.86422367) 7.1776e-05 TDB period 2022.759043120027 5.54 1.6885e-05 4.623e-08 d yr n .1779747326921916 1.4856e-09 deg/d Q 3.581833768582333 1.9932e-08 au   Orbit Determination Parameters    # obs. used (total)      1769      data-arc span      17933 days (49.10 yr)      first obs. used      1971-03-24      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50446      source      ORB      producer      Otto Matic      solution date      2020-May-20 04:31:48   Additional Information  Earth MOID = 1.67098 au   Jupiter MOID = 1.80535 au   T_jup = 3.191  [ 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 13.4   n/a MPO319299   diameter diameter 12.162 km 0.311 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.060   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17087 (1999 JC19)          Discovered 1999-May-10 by LINEAR at Socorro Reference: 20000913/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 JC19 = 1993 FL83 = 3317 T-1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-15 21:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin