+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2013 TC172) Classification: TransNeptunian Object          SPK-ID: 3841666 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 2 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6724187536912527 0.005853   a 56.72661501057466 0.78135 au q 18.58257524404054 0.083169 au i 7.364069459077513 0.0027548 deg node 290.6131939718429 0.033011 deg peri 297.8650769928961 0.25381 deg M 42.12724578893703 1.1346 deg tp 2440738.880213235352 (1970-Jun-01.38021324) 116.16 TDB period 156055.3746184306 427.26 3224.2 8.827 d yr n .002306873447199318 4.7662e-05 deg/d Q 94.87065477710878 1.3067 au   Orbit Determination Parameters    # obs. used (total)      14      data-arc span      1133 days (3.10 yr)      first obs. used      2013-09-29      last obs. used      2016-11-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      6      norm. resid. RMS      .69126      source      ORB      producer      Otto Matic      solution date      2019-Jul-31 23:35:47   Additional Information  Earth MOID = 17.5796 au   Jupiter MOID = 13.2361 au   T_jup = 4.939  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 5.9   .81887 MPO477712 autocmod 2.6q [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2021-Jan-17 19:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin