+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   74924 (1999 TF151) Classification: Main-belt Asteroid          SPK-ID: 2074924 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06254635782097728 3.1008e-08   a 2.33021219028009 7.961e-09 au q 2.184465904828028 7.1424e-08 au i 7.161320093356201 3.8433e-06 deg node 48.04939846044826 2.6869e-05 deg peri 91.25237302085827 4.1596e-05 deg M 232.604841041289 3.2488e-05 deg tp 2459660.271509492735 (2022-Mar-21.77150949) 0.00011802 TDB period 1299.246727821338 3.56 6.6582e-06 1.823e-08 d yr n .277083630299898 1.42e-09 deg/d Q 2.475958475732152 8.4589e-09 au   Orbit Determination Parameters    # obs. used (total)      1333      data-arc span      7791 days (21.33 yr)      first obs. used      1999-09-14      last obs. used      2021-01-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49566      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 13:16:21   Additional Information  Earth MOID = 1.21111 au   Jupiter MOID = 2.53325 au   T_jup = 3.558  [ 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 15.33   n/a E2021B10   74924 (1999 TF151)          Discovered 1999-Oct-07 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-May-06 02:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin