+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17439 Juliesan (1989 TR3) Classification: Main-belt Asteroid          SPK-ID: 2017439 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02775628628672568 3.6834e-08   a 3.165024789134908 2.1197e-08 au q 3.077175454983096 1.2211e-07 au i 9.538181107169775 5.596e-06 deg node 168.3960083610941 2.2997e-05 deg peri 80.6122109343268 0.00010146 deg M 287.6910584604921 9.9824e-05 deg tp 2459413.598486901997 (2021-Jul-18.09848690) 0.00057095 TDB period 2056.667572757432 5.63 2.0661e-05 5.657e-08 d yr n .1750404415222718 1.7584e-09 deg/d Q 3.25287412328672 2.1785e-08 au   Orbit Determination Parameters    # obs. used (total)      1199      data-arc span      11165 days (30.57 yr)      first obs. used      1989-10-03      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58181      source      ORB      producer      Otto Matic      solution date      2020-May-20 04:36:12   Additional Information  Earth MOID = 2.08357 au   Jupiter MOID = 1.75192 au   T_jup = 3.182  [ 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 14.0   n/a MPO337406   diameter diameter 8.593 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.087   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17439 Juliesan           Discovered 1989 Oct. 7 by E. W. Elst at the European Southern Observatory. Julie Nelissen (1985-2017) was a dedicated nurse working at the Department of Psychiatry at the Stuivenberg clinic in the Antwerp region. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2017-11-04 Last Updated: 2017-11-07 [ show close-approach data ] Alternate Designations  1989 TR3 = 1992 EO35 = 1994 RQ14  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-15 21:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin