+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1087148684842105 4.7507e-08   a 2.64221145488923 1.5512e-08 au q 2.354963784063473 1.242e-07 au i 3.758323545083708 5.5046e-06 deg node 356.2772438476769 6.3418e-05 deg peri 213.4355033593826 6.6764e-05 deg M 162.4937471435542 2.1256e-05 deg tp 2458292.417377222652 (2018-Jun-22.91737722) 9.0918e-05 TDB period 1568.735712486503 4.29 1.3814e-05 3.782e-08 d yr n .2294841617581249 2.0208e-09 deg/d Q 2.929459125714988 1.7198e-08 au   Orbit Determination Parameters    # obs. used (total)      447      data-arc span      8064 days (22.08 yr)      first obs. used      1998-09-28      last obs. used      2020-10-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60215      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:01:50   Additional Information  Earth MOID = 1.35096 au   Jupiter MOID = 2.04046 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 ] 2020-Dec-01 00:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin