+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   146528 (2001 SE159) Classification: Main-belt Asteroid          SPK-ID: 2146528 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03951802343631432 5.046e-08   a 2.695207074713438 1.7543e-08 au q 2.588697818369192 1.3561e-07 au i 5.141877614404095 5.5879e-06 deg node 227.6100700448048 4.9552e-05 deg peri 158.3892134490714 7.8283e-05 deg M 66.67632835128624 5.8763e-05 deg tp 2458701.166165084976 (2019-Aug-05.66616509) 0.00026435 TDB period 1616.168484888235 4.42 1.5779e-05 4.32e-08 d yr n .2227490533110448 2.1748e-09 deg/d Q 2.801716331057684 1.8236e-08 au   Orbit Determination Parameters    # obs. used (total)      275      data-arc span      7885 days (21.59 yr)      first obs. used      1999-03-20      last obs. used      2020-10-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59853      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 14:27:03   Additional Information  Earth MOID = 1.59354 au   Jupiter MOID = 2.37801 au   T_jup = 3.363  [ 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 16.2   n/a MPO453930   146528 (2001 SE159)          Discovered 2001-Sep-17 by LINEAR at Socorro Reference: 20070106/Numbers.arc Last Updated: 2007-01-09 [ 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 2184-Aug-22 04:05 00:01 Eunom 0.0464387846686402 0.0464363073970094 0.0464413036182196 4.21577124251724 4.21577117081446 2518983.670071842 1.4474429340169 2422.44702568982 52.6827194168082 87.3363704992578 131601.04986844 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 14:27:04 2020-Nov-12 14:27 Alternate Designations  2001 SE159 = 2002 XH14  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-27 05:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin