+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11132 Horne (1996 WU) Classification: Main-belt Asteroid          SPK-ID: 2011132 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1117130870727682 1.4635e-08   a 3.141277909194794 1.4504e-08 au q 2.790356056605153 4.4044e-08 au i 4.203900937877458 5.6986e-07 deg node 236.8487314335153 4.4e-06 deg peri 296.9388420435723 1.0007e-05 deg M 45.96100893662325 7.9239e-06 deg tp 2459136.875890383816 (2020-Oct-14.37589038) 4.4173e-05 TDB period 2033.564571889769 5.57 1.4084e-05 3.856e-08 d yr n .1770290478976313 1.2261e-09 deg/d Q 3.492199761784436 1.6124e-08 au   Orbit Determination Parameters    # obs. used (total)      2533      data-arc span      10298 days (28.19 yr)      first obs. used      1993-04-16      last obs. used      2021-06-26      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45511      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 02:36:15   Additional Information  Earth MOID = 1.79921 au   Jupiter MOID = 1.5083 au   T_jup = 3.197  [ 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 12.78   n/a E2021B10   diameter diameter 12.843 km 0.302 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.098   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11132 Horne           Discovered 1996 Nov. 17 by D. di Cicco at Sudbury. An amateur astronomer since age 10, Johnny Horne (b. 1953) is photo editor for the Fayetteville Observer, the oldest continuously published newspaper in his native North Carolina. Through his photographs, and since 1989 his monthly "Backyard Universe" column, he keeps readers astronomically enlightened. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20040107/MPCPages.arc Last Updated: 2004-01-07 [ show close-approach data ] Alternate Designations  1996 WU = 1999 JR57  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jul-25 12:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin