+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02764787350946585 3.6255e-08   a 3.164255387105623 2.0778e-08 au q 3.076770454411281 1.2081e-07 au i 9.539063445428672 5.5646e-06 deg node 168.3978002814113 2.2442e-05 deg peri 81.05979170700223 0.00010153 deg M 322.2591703178739 0.00010006 deg tp 2459416.033440581308 (2021-Jul-20.53344058) 0.00057176 TDB period 2055.917669611223 5.63 2.025e-05 5.544e-08 d yr n .175104288134299 1.7247e-09 deg/d Q 3.251740319799965 2.1353e-08 au   Orbit Determination Parameters    # obs. used (total)      1236      data-arc span      11467 days (31.39 yr)      first obs. used      1989-10-03      last obs. used      2021-02-24      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .58377      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:03:15   Additional Information  Earth MOID = 2.08161 au   Jupiter MOID = 1.75236 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 ] 2021-Apr-14 18:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin