+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   74902 (1999 TS124) Classification: Main-belt Asteroid          SPK-ID: 2074902 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04226533502838247 3.9263e-08   a 2.287473521953811 1.0609e-08 au q 2.190792687179879 9.2307e-08 au i 4.391810615769455 4.3906e-06 deg node 291.7586977530625 5.1872e-05 deg peri 45.36005198009988 7.2528e-05 deg M 17.96428555608455 5.1017e-05 deg tp 2458937.442029421696 (2020-Mar-28.94202942) 0.00017905 TDB period 1263.666697866577 3.46 8.7911e-06 2.407e-08 d yr n .2848852475164383 1.9819e-09 deg/d Q 2.384154356727742 1.1057e-08 au   Orbit Determination Parameters    # obs. used (total)      762      data-arc span      7286 days (19.95 yr)      first obs. used      1999-09-08      last obs. used      2019-08-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58691      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 02:44:12   Additional Information  Earth MOID = 1.18261 au   Jupiter MOID = 2.75616 au   T_jup = 3.596  [ 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 15.7   n/a MPO436307   74902 (1999 TS124)          Discovered 1999-Oct-04 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-20 05:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin