+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   109346 (2001 QK150) Classification: Mars-crossing Asteroid          SPK-ID: 2109346 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3660156224843143 5.2199e-08   a 2.457927199643339 9.3627e-09 au q 1.558287445644755 1.3252e-07 au i 7.063833042924671 4.8015e-06 deg node 108.7847807036985 3.5973e-05 deg peri 276.9458118478219 3.7231e-05 deg M 352.9598566499075 1.1794e-05 deg tp 2459228.025229687469 (2021-Jan-13.52522969) 4.6247e-05 TDB period 1407.511494401422 3.85 8.0422e-06 2.202e-08 d yr n .2557705577765805 1.4614e-09 deg/d Q 3.357566953641924 1.279e-08 au   Orbit Determination Parameters    # obs. used (total)      609      data-arc span      25272 days (69.19 yr)      first obs. used      1951-11-05      last obs. used      2021-01-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55991      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:51:58   Additional Information  Earth MOID = .581756 au   Jupiter MOID = 2.14111 au   T_jup = 3.386  [ 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 15.95   n/a E2021B55   109346 (2001 QK150)          Discovered 2001-Aug-27 by NEAT at Palomar Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2087-Aug-31 21:47 < 00:01 Hebe 0.0482311496142823 0.0482282748367114 0.0482340257701499 4.03347494409901 4.03347491214315 2483564.407372394 0.939734123743406 474.210226285765 62.8137225802572 74.10107869062 110482.695709611 T 18 CATAB v2.0f-lin.ifort 2021-Feb-24 08:51:59 2021-Feb-24 08:52 Alternate Designations  2001 QK150 = 1993 NO1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-08 01:44 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin