+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17258 Whalen (2000 HK90) Classification: Main-belt Asteroid          SPK-ID: 2017258 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1840743333074607 3.5145e-08   a 2.25079743875114 6.0952e-09 au q 1.836483400802884 7.8077e-08 au i 4.653298556875386 3.6201e-06 deg node 70.54916190607628 4.0893e-05 deg peri 326.6701002068619 4.1882e-05 deg M 178.2951873100578 9.122e-06 deg tp 2458389.642141898265 (2018-Sep-28.14214190) 3.064e-05 TDB period 1233.39744742633 3.38 5.0101e-06 1.372e-08 d yr n .2918767188558678 1.1856e-09 deg/d Q 2.665111476699397 7.2172e-09 au   Orbit Determination Parameters    # obs. used (total)      1057      data-arc span      23868 days (65.35 yr)      first obs. used      1954-12-22      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52176      source      ORB      producer      Otto Matic      solution date      2020-May-20 04:33:48   Additional Information  Earth MOID = .84616 au   Jupiter MOID = 2.75103 au   T_jup = 3.600  [ 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 15.6   n/a MPO467889   17258 Whalen           Discovered 2000 Apr. 29 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Named in honor of Patrice Whalen for mentoring a finalist in the 2002 Intel Science Talent Search, a science competition for high school seniors. Whalen is a teacher at the Humanities and Sciences Institute, Phoenix, Arizona. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20020227/MPCPages.arc Last Updated: 2003-10-02 [ show close-approach data ] Alternate Designations  2000 HK90 = 1984 UX3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-03 13:23 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin