+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   249993 (2001 XT92) Classification: Main-belt Asteroid          SPK-ID: 2249993 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09815178369016557 4.694e-08   a 2.801025459376396 2.3771e-08 au q 2.526099814377038 1.3628e-07 au i 3.093651143454066 5.1126e-06 deg node 265.048147744364 9.7445e-05 deg peri 149.2011793062382 0.00010198 deg M 349.1843045396085 2.981e-05 deg tp 2459051.942961311341 (2020-Jul-21.44296131) 0.00014199 TDB period 1712.276953424177 4.69 2.1797e-05 5.968e-08 d yr n .2102463618867726 2.6764e-09 deg/d Q 3.075951104375755 2.6104e-08 au   Orbit Determination Parameters    # obs. used (total)      238      data-arc span      8399 days (23.00 yr)      first obs. used      1996-10-04      last obs. used      2019-10-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53708      source      ORB      producer      Otto Matic      solution date      2019-Nov-08 02:49:44   Additional Information  Earth MOID = 1.53815 au   Jupiter MOID = 2.22607 au   T_jup = 3.316  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.5   n/a MPO454855   249993 (2001 XT92)          Discovered 2001-Dec-10 by LINEAR at Socorro Reference: 20100923/Numbers.arc Last Updated: 2010-09-27 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-05 11:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin