+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   56273 (1999 JZ103) Classification: Main-belt Asteroid          SPK-ID: 2056273 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1317362590375967 5.9709e-08   a 2.560985834960895 1.3148e-08 au q 2.223611141614871 1.5224e-07 au i 16.98249696740576 5.1561e-06 deg node 93.35510897947401 2.3581e-05 deg peri 23.06456455314153 3.9689e-05 deg M 131.0465302895905 2.9019e-05 deg tp 2458455.580665840423 (2018-Dec-03.08066584) 0.00012087 TDB period 1496.956537986496 4.10 1.1528e-05 3.156e-08 d yr n .2404879439480745 1.852e-09 deg/d Q 2.89836052830692 1.488e-08 au   Orbit Determination Parameters    # obs. used (total)      886      data-arc span      8267 days (22.63 yr)      first obs. used      1997-11-30      last obs. used      2020-07-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55537      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 23:00:05   Additional Information  Earth MOID = 1.248 au   Jupiter MOID = 2.2751 au   T_jup = 3.362  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.6   n/a MPO474445   diameter diameter 5.022 km 1.863 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.133   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   56273 (1999 JZ103)          Discovered 1999-May-14 by LINEAR at Socorro Reference: 20030318/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1999 JZ103 = 2001 QF86  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-20 21:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin