+ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .146685026011432 4.3549e-08   a 2.688184395795851 1.7132e-08 au q 2.293867997775011 1.1337e-07 au i 17.02237928681309 6.0632e-06 deg node 61.45309006055958 1.6681e-05 deg peri 66.18684372466718 2.7298e-05 deg M 163.1369691375822 2.1862e-05 deg tp 2458270.980509733317 (2018-Jun-01.48050973) 9.6102e-05 TDB period 1609.855925878568 4.41 1.539e-05 4.214e-08 d yr n .2236224957854737 2.1378e-09 deg/d Q 3.082500793816691 1.9645e-08 au   Orbit Determination Parameters    # obs. used (total)      1108      data-arc span      12234 days (33.49 yr)      first obs. used      1986-11-30      last obs. used      2020-05-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49676      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 23:35:50   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 ] 2020-Sep-18 20:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin