+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101214 (1998 SF52) Classification: Main-belt Asteroid          SPK-ID: 2101214 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1085321410226084 4.5554e-08   a 2.642667418932584 1.5101e-08 au q 2.35585306594514 1.199e-07 au i 3.758109354589009 5.033e-06 deg node 356.2747256550998 6.2059e-05 deg peri 213.392879927418 6.4974e-05 deg M 208.438827578836 2.0546e-05 deg tp 2459861.113809310877 (2022-Oct-08.61380931) 9.2041e-05 TDB period 1569.141802961577 4.30 1.3449e-05 3.682e-08 d yr n .2294247717577474 1.9664e-09 deg/d Q 2.929481771920027 1.6739e-08 au   Orbit Determination Parameters    # obs. used (total)      480      data-arc span      8136 days (22.28 yr)      first obs. used      1998-09-28      last obs. used      2021-01-06      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .58665      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:35:45   Additional Information  Earth MOID = 1.35092 au   Jupiter MOID = 2.03927 au   T_jup = 3.383  [ 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 15.9   n/a MPO445806   101214 (1998 SF52)          Discovered 1998-Sep-28 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-23 03:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin