+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118078 (5174 T-2) Classification: Main-belt Asteroid          SPK-ID: 2118078 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1593761036101697 6.6633e-08   a 2.640801330550596 1.4291e-08 au q 2.21992070407889 1.7779e-07 au i 15.55993736214495 7.3246e-06 deg node 342.5097366039691 1.9779e-05 deg peri .527488500081624 2.5744e-05 deg M 334.4496179986126 1.7577e-05 deg tp 2459111.749205712702 (2020-Sep-19.24920571) 7.6878e-05 TDB period 1567.480049981169 4.29 1.2724e-05 3.484e-08 d yr n .2296679948203008 1.8644e-09 deg/d Q 3.061681957022302 1.6569e-08 au   Orbit Determination Parameters    # obs. used (total)      551      data-arc span      17115 days (46.86 yr)      first obs. used      1973-09-24      last obs. used      2020-08-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57713      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 10:01:47   Additional Information  Earth MOID = 1.21208 au   Jupiter MOID = 2.34714 au   T_jup = 3.325  [ 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 15.3   n/a MPO251129   118078 (5174 T-2)          Discovered 1973-Sep-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  5174 T-2 = 2003 QK23  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-29 17:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin