+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   134085 (2004 XE102) Classification: Main-belt Asteroid          SPK-ID: 2134085 [ 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 .1991123166554105 4.4371e-08   a 3.106226720692423 2.9572e-08 au q 2.487738722278416 1.4304e-07 au i 6.420745960807245 4.6221e-06 deg node 49.12390725946471 4.9816e-05 deg peri 53.39162649940948 5.1304e-05 deg M 290.5335911507948 1.3995e-05 deg tp 2459386.351773850140 (2021-Jun-20.85177385) 8.084e-05 TDB period 1999.623139978101 5.47 2.8555e-05 7.818e-08 d yr n .1800339237942318 2.5709e-09 deg/d Q 3.72471471910643 3.546e-08 au   Orbit Determination Parameters    # obs. used (total)      399      data-arc span      7998 days (21.90 yr)      first obs. used      1998-10-28      last obs. used      2020-09-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49419      source      ORB      producer      Otto Matic      solution date      2020-Oct-22 20:36:26   Additional Information  Earth MOID = 1.51106 au   Jupiter MOID = 1.49844 au   T_jup = 3.180  [ 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 MPO417702   diameter diameter 2.680 km 0.573 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.246   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   134085 (2004 XE102)          Discovered 2004-Dec-10 by Spacewatch at Kitt Peak Reference: 20060711/Numbers.arc Last Updated: 2006-07-17 [ show close-approach data ] Alternate Designations  2004 XE102 = 2000 EJ82  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-24 04:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin