+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   134073 (2004 XL66) Classification: Main-belt Asteroid          SPK-ID: 2134073 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1191124689053563 4.3233e-08   a 3.190940871718425 2.9333e-08 au q 2.810860026357034 1.398e-07 au i 2.199034818980201 4.8901e-06 deg node 34.43782268003935 0.00012416 deg peri 121.8556462663419 0.00012579 deg M 196.8137499797779 2.0052e-05 deg tp 2459944.251432437312 (2022-Dec-30.75143244) 0.00012044 TDB period 2081.98004203988 5.70 2.8708e-05 7.86e-08 d yr n .1729123203540797 2.3843e-09 deg/d Q 3.571021717079816 3.2827e-08 au   Orbit Determination Parameters    # obs. used (total)      502      data-arc span      6684 days (18.30 yr)      first obs. used      2000-02-25      last obs. used      2018-06-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53941      source      ORB      producer      Otto Matic      solution date      2018-Oct-04 05:19:23   Additional Information  Earth MOID = 1.82124 au   Jupiter MOID = 1.41493 au   T_jup = 3.185  [ 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 15.2   n/a MPO432806   diameter diameter 4.531 km 1.774 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.078   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   134073 (2004 XL66)          Discovered 2004-Dec-03 by Spacewatch at Kitt Peak Reference: 20060711/Numbers.arc Last Updated: 2006-07-17 [ show close-approach data ] Alternate Designations  2004 XL66 = 2000 EL32  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-26 16:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin