+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102300 (1999 TS87) Classification: Main-belt Asteroid          SPK-ID: 2102300 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1347962982274405 4.3502e-08   a 2.39823997368995 1.2193e-08 au q 2.07496610297547 1.0519e-07 au i 2.578477486771305 3.8029e-06 deg node 128.3508802523237 0.00011018 deg peri 262.8542415390369 0.00011149 deg M 261.8596116954242 2.0036e-05 deg tp 2459570.313409181861 (2021-Dec-21.81340918) 7.7446e-05 TDB period 1356.554927134548 3.71 1.0345e-05 2.832e-08 d yr n .2653781227719458 2.0239e-09 deg/d Q 2.72151384440443 1.3837e-08 au   Orbit Determination Parameters    # obs. used (total)      437      data-arc span      10043 days (27.50 yr)      first obs. used      1992-12-25      last obs. used      2020-06-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54476      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:55:35   Additional Information  Earth MOID = 1.08117 au   Jupiter MOID = 2.70334 au   T_jup = 3.514  [ 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 16.53   n/a E2021B55   102300 (1999 TS87)          Discovered 1999-Oct-15 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-Mar-03 19:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin