+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17673 Houkidaisen (1996 XL32) Classification: Main-belt Asteroid          SPK-ID: 2017673 [ 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 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1486485402341696 3.5273e-08   a 3.110720123648017 2.1103e-08 au q 2.648316118190683 1.1635e-07 au i 6.260383968344167 4.0619e-06 deg node 117.646042391642 4.0482e-05 deg peri 167.5226404692948 4.3402e-05 deg M 273.3776453650959 1.6938e-05 deg tp 2459482.689022533983 (2021-Sep-25.18902253) 9.5924e-05 TDB period 2003.963628602254 5.49 2.0392e-05 5.583e-08 d yr n .1796439789933197 1.828e-09 deg/d Q 3.57312412910535 2.424e-08 au   Orbit Determination Parameters    # obs. used (total)      1145      data-arc span      8528 days (23.35 yr)      first obs. used      1996-12-15      last obs. used      2020-04-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55866      source      ORB      producer      Otto Matic      solution date      2020-May-20 04:39:23   Additional Information  Earth MOID = 1.63233 au   Jupiter MOID = 1.59839 au   T_jup = 3.193  [ 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 14.1   n/a MPO435863   diameter diameter 6.590 km 0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.135   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17673 Houkidaisen           Discovered 1996 Dec. 15 at Saji Observatory. Houki Daisen is the highest peak in the Chugoku district of Tottori prefecture. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010109/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1996 XL32 = 1998 EH10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-26 08:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin