+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102195 (1999 ST10) Classification: Main-belt Asteroid          SPK-ID: 2102195 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1422551532601807 3.4435e-08   a 2.359504733762458 1.086e-08 au q 2.023853026242957 8.4652e-08 au i 7.334349496684319 4.0416e-06 deg node 100.5504934280432 2.8711e-05 deg peri 261.5828333963414 3.1889e-05 deg M 322.286735438044 1.4643e-05 deg tp 2459339.182395044763 (2021-May-04.68239504) 5.4192e-05 TDB period 1323.822341979864 3.62 9.1395e-06 2.502e-08 d yr n .2719398129069163 1.8774e-09 deg/d Q 2.695156441281958 1.2405e-08 au   Orbit Determination Parameters    # obs. used (total)      918      data-arc span      7626 days (20.88 yr)      first obs. used      1999-09-30      last obs. used      2020-08-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53742      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:56:12   Additional Information  Earth MOID = 1.03475 au   Jupiter MOID = 2.77381 au   T_jup = 3.527  [ 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 15.68   n/a E2021B55   102195 (1999 ST10)          Discovered 1999-Sep-30 by CSS at Catalina Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-09 01:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin