+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78083 (2002 LX21) Classification: Main-belt Asteroid          SPK-ID: 2078083 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1201606299584138 4.205e-08   a 3.074347803917951 2.2449e-08 au q 2.704932235087904 1.2489e-07 au i 2.095452280968763 4.3657e-06 deg node 55.86769367436408 0.00014453 deg peri 222.0287457486365 0.00014637 deg M 98.4152103728251 2.4802e-05 deg tp 2458462.245525976313 (2018-Dec-09.74552598) 0.00013415 TDB period 1968.919335887864 5.39 2.1566e-05 5.904e-08 d yr n .1828414163232653 2.0027e-09 deg/d Q 3.443763372747999 2.5147e-08 au   Orbit Determination Parameters    # obs. used (total)      685      data-arc span      21967 days (60.14 yr)      first obs. used      1960-09-24      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51497      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:06:01   Additional Information  Earth MOID = 1.68898 au   Jupiter MOID = 1.67282 au   T_jup = 3.218  [ 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 15.0   n/a MPO359291   diameter diameter 5.513 km 0.379 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.048   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   78083 (2002 LX21)          Discovered 2002-Jun-08 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2002 LX21 = 2003 QW29 = 2639 P-L  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-27 14:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin