+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1192466512700752 4.0213e-08   a 3.190828569760885 2.6272e-08 au q 2.810332948040017 1.3089e-07 au i 2.199080768044793 4.2934e-06 deg node 34.43665814130357 0.0001089 deg peri 121.7927382423818 0.00011018 deg M 231.4841521831152 1.8875e-05 deg tp 2459943.703625596136 (2022-Dec-30.20362560) 0.00011449 TDB period 2081.870133213696 5.70 2.5711e-05 7.039e-08 d yr n .172921448968713 2.1356e-09 deg/d Q 3.571324191481754 2.9404e-08 au   Orbit Determination Parameters    # obs. used (total)      583      data-arc span      7620 days (20.86 yr)      first obs. used      2000-02-25      last obs. used      2021-01-05      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53229      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 18:06:47   Additional Information  Earth MOID = 1.82052 au   Jupiter MOID = 1.41388 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 ] 2021-Apr-18 09:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin