+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102447 (1999 TR216) Classification: Main-belt Asteroid          SPK-ID: 2102447 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .006451162869655841 6.4339e-08   a 2.418829759432044 1.3715e-08 au q 2.403225494699978 1.5467e-07 au i 3.672381599090457 6.3914e-06 deg node 338.2030417926452 6.9873e-05 deg peri 359.4482488251023 0.00043374 deg M 273.8006394554593 0.00043175 deg tp 2459529.509111216110 (2021-Nov-11.00911122) 0.001649 TDB period 1374.062165769756 3.76 1.1687e-05 3.2e-08 d yr n .2619968797396632 2.2283e-09 deg/d Q 2.434434024164111 1.3804e-08 au   Orbit Determination Parameters    # obs. used (total)      507      data-arc span      9041 days (24.75 yr)      first obs. used      1995-08-22      last obs. used      2020-05-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5736      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:42:02   Additional Information  Earth MOID = 1.38935 au   Jupiter MOID = 2.55569 au   T_jup = 3.512  [ hide covariance matrix ] Orbital Elements at Epoch 2457223.5 (2015-Jul-20.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .006054542069966794 5.9639e-08   q 2.404161713736277 1.4359e-07 au tp 2456743.784376929875 (2014-Mar-27.28437693) 0.0019486 TDB node 338.2426940557608 6.9803e-05 deg peri 349.7214408016777 0.00051354 deg i 3.674872499946703 6.3919e-06 deg   Orbit Determination Parameters    # obs. used (total)      507      data-arc span      9041 days (24.75 yr)      first obs. used      1995-08-22      last obs. used      2020-05-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5736      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:42:02   Additional Information  Jupiter MOID = 2.55569 au   T_jup = 3.512  Orbit Covariance (6×6)   e q tp node peri i e 3.556846039797408E-15 -8.524091210682148E-15 6.69318924098563E-11 8.247002163520107E-15 1.741988027137492E-11 -1.296443424988005E-16 q -8.524091210682148E-15 2.061726079386615E-14 -1.521738351913165E-10 -2.078956455850415E-14 -3.958451786337523E-11 4.200114923945436E-16 tp 6.69318924098563E-11 -1.521738351913165E-10 3.797224274609261E-6 2.104282170879674E-10 9.914390759386429E-7 -3.919300781294395E-11 node 8.247002163520107E-15 -2.078956455850415E-14 2.104282170879674E-10 4.872411401976472E-9 -4.807145055143786E-9 1.695603349443752E-10 peri 1.741988027137492E-11 -3.958451786337523E-11 9.914390759386429E-7 -4.807145055143786E-9 2.637259319600538E-7 -1.794360584966445E-10 i -1.296443424988005E-16 4.200114923945436E-16 -3.919300781294395E-11 1.695603349443752E-10 -1.794360584966445E-10 4.085627582679974E-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 16.23   n/a E2021B55   102447 (1999 TR216)          Discovered 1999-Oct-15 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1999 TR216 = 2001 DN46  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-16 18:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin