+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70506 (1999 TX101) Classification: Main-belt Asteroid          SPK-ID: 2070506 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1466850242801404 4.3414e-08   a 2.688184394503463 1.6938e-08 au q 2.293868001326228 1.1316e-07 au i 17.02237921906566 5.7571e-06 deg node 61.45309037336776 1.6374e-05 deg peri 66.18684694486358 2.6168e-05 deg M 163.1369664020856 2.1142e-05 deg tp 2458270.980522492063 (2018-Jun-01.48052249) 9.2538e-05 TDB period 1609.855924717623 4.41 1.5215e-05 4.166e-08 d yr n .2236224959467388 2.1135e-09 deg/d Q 3.082500787680698 1.9422e-08 au   Orbit Determination Parameters    # obs. used (total)      1136      data-arc span      12339 days (33.78 yr)      first obs. used      1986-11-30      last obs. used      2020-09-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49618      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:00:20   Additional Information  Earth MOID = 1.36495 au   Jupiter MOID = 2.25056 au   T_jup = 3.295  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.1   n/a MPO436275   diameter diameter 5.504 km 0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.190   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   70506 (1999 TX101)          Discovered 1999-Oct-02 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 TX101 = 1986 WT8 = 2000 AK138  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 16:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin