+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   134214 (2005 TU61) Classification: Main-belt Asteroid          SPK-ID: 2134214 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1663928675824157 4.8825e-08   a 2.380167913713152 1.225e-08 au q 1.984124949222764 1.1653e-07 au i 3.949783572436449 5.1294e-06 deg node 344.2069204989472 6.1062e-05 deg peri 198.6893340541201 6.2602e-05 deg M 342.1207713658836 1.7755e-05 deg tp 2459267.112556039535 (2021-Feb-21.61255604) 6.6469e-05 TDB period 1341.250266718663 3.67 1.0354e-05 2.835e-08 d yr n .2684062839970437 2.0721e-09 deg/d Q 2.776210878203539 1.4288e-08 au   Orbit Determination Parameters    # obs. used (total)      616      data-arc span      8450 days (23.13 yr)      first obs. used      1997-11-30      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53986      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 19:40:14   Additional Information  Earth MOID = .98669 au   Jupiter MOID = 2.18686 au   T_jup = 3.517  [ 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 16.0   n/a MPO453826   diameter diameter 3.485 km 0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.053   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   134214 (2005 TU61)          Discovered 2005-Oct-03 by Spacewatch at Kitt Peak Reference: 20060711/Numbers.arc Last Updated: 2006-07-17 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-10 11:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin