+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   173969 (2001 XF82) Classification: Main-belt Asteroid          SPK-ID: 2173969 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1172464730470271 5.7553e-08   a 3.077119120270947 3.1464e-08 au q 2.716337756273608 1.7426e-07 au i 17.50867123092741 5.7139e-06 deg node 84.32972492480758 1.8214e-05 deg peri 288.6879974801409 2.826e-05 deg M 237.2304161508524 2.4195e-05 deg tp 2459872.862019637864 (2022-Oct-20.36201964) 0.00013785 TDB period 1971.582206933673 5.40 3.024e-05 8.279e-08 d yr n .1825944658731194 2.8006e-09 deg/d Q 3.437900484268286 3.5153e-08 au   Orbit Determination Parameters    # obs. used (total)      614      data-arc span      7647 days (20.94 yr)      first obs. used      1999-06-14      last obs. used      2020-05-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51956      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 20:59:18   Additional Information  Earth MOID = 1.77836 au   Jupiter MOID = 2.10697 au   T_jup = 3.148  [ 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 14.69   n/a E2021B55   diameter diameter 6.870 km 0.346 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.071   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   173969 (2001 XF82)          Discovered 2001-Dec-11 by LINEAR at Socorro Reference: 20080122/Numbers.arc Last Updated: 2008-01-28 [ show close-approach data ] Alternate Designations  2001 XF82 = 1999 LK36  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-May-09 23:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin