+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   108358 (2001 KT12) Classification: Main-belt Asteroid          SPK-ID: 2108358 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1203546840517768 3.1587e-08   a 2.528676718381953 1.3594e-08 au q 2.22433863087201 7.9497e-08 au i 15.46728691997318 4.2447e-06 deg node 86.91818946214914 1.4542e-05 deg peri 224.8091375403059 2.4924e-05 deg M 260.2400419638453 2.2275e-05 deg tp 2459607.497881739406 (2022-Jan-27.99788174) 9.2104e-05 TDB period 1468.71791358498 4.02 1.1844e-05 3.243e-08 d yr n .2451117377068543 1.9766e-09 deg/d Q 2.833014805891897 1.5231e-08 au   Orbit Determination Parameters    # obs. used (total)      873      data-arc span      8080 days (22.12 yr)      first obs. used      1998-11-19      last obs. used      2021-01-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5475      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 19:34:27   Additional Information  Earth MOID = 1.23101 au   Jupiter MOID = 2.39766 au   T_jup = 3.392  [ 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 15.50   n/a E2021B55   diameter diameter 2.312 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.229   0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   108358 (2001 KT12)          Discovered 2001-May-18 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  2001 KT12 = 2002 TX241  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-28 07:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin