+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118424 (1999 TL111) Classification: Main-belt Asteroid          SPK-ID: 2118424 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1893111135617342 3.9938e-08   a 3.153816149362532 2.1922e-08 au q 2.55676370215773 1.2576e-07 au i 4.192221467491059 4.7863e-06 deg node 253.3011844864309 6.1376e-05 deg peri 148.2741228375144 6.2709e-05 deg M 229.1591310720466 1.4807e-05 deg tp 2459744.022139424040 (2022-Jun-13.52213942) 8.9507e-05 TDB period 2045.752006890475 5.60 2.133e-05 5.84e-08 d yr n .1759744088176146 1.8348e-09 deg/d Q 3.750868596567333 2.6072e-08 au   Orbit Determination Parameters    # obs. used (total)      697      data-arc span      7160 days (19.60 yr)      first obs. used      1999-09-18      last obs. used      2019-04-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52742      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 08:44:09   Additional Information  Earth MOID = 1.56657 au   Jupiter MOID = 1.67136 au   T_jup = 3.175  [ 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 14.7   n/a MPO436569   diameter diameter 6.079 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.076   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   118424 (1999 TL111)          Discovered 1999-Oct-04 by LINEAR at Socorro Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ show close-approach data ] Alternate Designations  1999 TL111 = 2001 AZ38  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-30 17:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin