+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1883531632022142 3.9423e-08   a 3.157485945081572 2.1839e-08 au q 2.562763479558925 1.2476e-07 au i 4.18665957369685 4.6634e-06 deg node 253.2735934085809 5.8005e-05 deg peri 148.007933387254 5.9315e-05 deg M 264.5852602714591 1.4877e-05 deg tp 2459743.654691560099 (2022-Jun-13.15469156) 8.8817e-05 TDB period 2049.323715790066 5.61 2.1262e-05 5.821e-08 d yr n .1756677079497959 1.8225e-09 deg/d Q 3.75220841060422 2.5953e-08 au   Orbit Determination Parameters    # obs. used (total)      723      data-arc span      7612 days (20.84 yr)      first obs. used      1999-09-18      last obs. used      2020-07-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52673      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 18:11:39   Additional Information  Earth MOID = 1.57153 au   Jupiter MOID = 1.67199 au   T_jup = 3.174  [ 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 14.77   n/a E2021B55   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 ] 2021-Apr-11 05:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin