+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20161 (1996 TR66) Classification: TransNeptunian Object          SPK-ID: 2020161 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 3 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4014338325315837 0.00018917   a 47.955428494077 0.03301 au q 28.70449704300536 0.012395 au i 12.4042630596878 0.00053638 deg node 342.9157690022107 0.0010464 deg peri 309.5675702653419 0.058586 deg M 57.62494586115277 0.074454 deg tp 2439584.349919315286 (1967-Apr-03.84991932) 5.0412 TDB period 121298.4051366997 332.10 125.24 0.3429 d yr n .00296788733202461 3.0644e-06 deg/d Q 67.20635994514865 0.046262 au   Orbit Determination Parameters    # obs. used (total)      23      data-arc span      4398 days (12.04 yr)      first obs. used      1996-10-08      last obs. used      2008-10-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      4      norm. resid. RMS      .62028      source      ORB      producer      Otto Matic      solution date      2017-Apr-05 23:57:26   Additional Information  Earth MOID = 27.7029 au   Jupiter MOID = 23.6303 au   T_jup = 5.540  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 7.5   n/a PDS3 (MPO 7746)   20161 (1996 TR66)          Discovered 1996-Oct-08 by Jewitt, D. C., Trujillo, C., Luu, J. X., Chen, J. at Mauna Kea Reference: 20010109/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2020-Oct-26 08:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin