+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   103383 (2000 AF121) Classification: Main-belt Asteroid          SPK-ID: 2103383 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1129042231029013 4.0049e-08   a 2.198853488725421 7.404e-09 au q 1.950593643863773 8.8046e-08 au i 5.103734010367482 4.1731e-06 deg node 257.91429466 4.5439e-05 deg peri 171.526619701928 4.9603e-05 deg M 192.8314109413868 1.9524e-05 deg tp 2459753.525354049411 (2022-Jun-23.02535405) 6.5756e-05 TDB period 1190.948183381405 3.26 6.0152e-06 1.647e-08 d yr n .3022801537661096 1.5268e-09 deg/d Q 2.447113333587069 8.2399e-09 au   Orbit Determination Parameters    # obs. used (total)      1067      data-arc span      7472 days (20.46 yr)      first obs. used      1999-12-07      last obs. used      2020-05-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4994      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:46:32   Additional Information  Earth MOID = .964535 au   Jupiter MOID = 2.78775 au   T_jup = 3.653  [ hide covariance matrix ] Orbital Elements at Epoch 2457235.5 (2015-Aug-01.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1122930185730833 3.991e-08   q 1.952091080886113 8.7625e-08 au tp 2457371.706124426516 (2015-Dec-15.20612443) 6.219e-05 TDB node 257.97816705501 4.5481e-05 deg peri 171.5188608847694 4.9706e-05 deg i 5.100924992398462 4.1707e-06 deg   Orbit Determination Parameters    # obs. used (total)      1067      data-arc span      7472 days (20.46 yr)      first obs. used      1999-12-07      last obs. used      2020-05-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4994      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:46:32   Additional Information  Jupiter MOID = 2.78775 au   T_jup = 3.653  Orbit Covariance (6×6)   e q tp node peri i e 1.592768255976217E-15 -3.487135061266571E-15 -9.443895694040805E-13 5.420180160297679E-15 -3.284700003385572E-13 -9.5595357131096E-16 q -3.487135061266571E-15 7.678143637853025E-15 2.178642040316678E-12 -1.240088467612209E-14 7.524467896512862E-13 2.145771503810942E-15 tp -9.443895694040805E-13 2.178642040316678E-12 3.867587103050651E-9 -5.000050525477735E-12 1.261222412873705E-9 5.432030462622327E-13 node 5.420180160297679E-15 -1.240088467612209E-14 -5.000050525477735E-12 2.068561661046736E-9 -2.061436299155535E-9 -6.96285490652118E-11 peri -3.284700003385572E-13 7.524467896512862E-13 1.261222412873705E-9 -2.061436299155535E-9 2.470646701851116E-9 6.953895537377901E-11 i -9.5595357131096E-16 2.145771503810942E-15 5.432030462622327E-13 -6.96285490652118E-11 6.953895537377901E-11 1.739443800503427E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.9   n/a MPO459482   diameter diameter 1.846 km 0.372 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.272   0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   103383 (2000 AF121)          Discovered 2000-Jan-05 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  2000 AF121 = 2002 TY292  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-20 19:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin