+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 5 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4010710492116635 0.00010086   a 48.01583579279072 0.024234 au q 28.7580741526012 0.0097568 au i 12.40002931419133 0.00010381 deg node 342.8869638524102 0.00044249 deg peri 309.8224119276972 0.045224 deg M 58.04761913726146 0.054776 deg tp 2439604.967174691108 (1967-Apr-24.46717469) 3.6567 TDB period 121527.6685238396 332.72 92.004 0.2519 d yr n .002962288377394323 2.2426e-06 deg/d Q 67.27359743298024 0.033954 au   Orbit Determination Parameters    # obs. used (total)      32      data-arc span      7248 days (19.84 yr)      first obs. used      1996-10-08      last obs. used      2016-08-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      4      norm. resid. RMS      .74388      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:14:23   Additional Information  Earth MOID = 27.7544 au   Jupiter MOID = 23.684 au   T_jup = 5.544  [ 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 ] 2021-Apr-16 01:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin