+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70590 (1999 TY173) Classification: Main-belt Asteroid          SPK-ID: 2070590 [ 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 .1376799376820313 4.2843e-08   a 2.601908794633542 1.0179e-08 au q 2.243678153934067 1.0918e-07 au i 2.36308052079431 4.1271e-06 deg node 99.32492586634895 0.00011842 deg peri 264.9967427503306 0.00011966 deg M 352.5664401204084 1.6287e-05 deg tp 2459032.154165875814 (2020-Jul-01.65416588) 6.9396e-05 TDB period 1532.980146777158 4.20 8.9954e-06 2.463e-08 d yr n .2348367007601772 1.378e-09 deg/d Q 2.960139435333017 1.158e-08 au   Orbit Determination Parameters    # obs. used (total)      604      data-arc span      10099 days (27.65 yr)      first obs. used      1993-03-23      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51958      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:54:49   Additional Information  Earth MOID = 1.24302 au   Jupiter MOID = 2.49574 au   T_jup = 3.399  [ 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 15.8   n/a MPO436275   70590 (1999 TY173)          Discovered 1999-Oct-10 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-27 21:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin