+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   47213 (1999 TC293) Classification: Main-belt Asteroid          SPK-ID: 2047213 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1219854863956072 3.7449e-08   a 2.219609734177864 7.8993e-09 au q 1.948849561145752 8.1765e-08 au i 3.968387104805808 4.1261e-06 deg node 317.1648034488688 5.9513e-05 deg peri 260.4530403844616 6.2429e-05 deg M 260.8342950041394 2.1247e-05 deg tp 2459333.214984758961 (2021-Apr-28.71498476) 7.2168e-05 TDB period 1207.850985562254 3.31 6.4478e-06 1.765e-08 d yr n .2980500113864792 1.5911e-09 deg/d Q 2.490369907209975 8.8628e-09 au   Orbit Determination Parameters    # obs. used (total)      1096      data-arc span      8210 days (22.48 yr)      first obs. used      1998-05-22      last obs. used      2020-11-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51511      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:23:58   Additional Information  Earth MOID = .946298 au   Jupiter MOID = 2.49566 au   T_jup = 3.638  [ hide covariance matrix ] Orbital Elements at Epoch 2456636.5 (2013-Dec-10.0) TDB Reference: JPL 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1220151550710278 3.7485e-08   q 1.949076028292693 8.1792e-08 au tp 2456917.638215040911 (2014-Sep-17.13821504) 6.6553e-05 TDB node 317.2223428205967 5.9511e-05 deg peri 260.3270360893233 6.2418e-05 deg i 3.968443762318954 4.126e-06 deg   Orbit Determination Parameters    # obs. used (total)      1096      data-arc span      8210 days (22.48 yr)      first obs. used      1998-05-22      last obs. used      2020-11-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51511      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:23:58   Additional Information  Jupiter MOID = 2.49566 au   T_jup = 3.638  Orbit Covariance (6×6)   e q tp node peri i e 1.40512428786173E-15 -3.055419999475857E-15 2.330645065507157E-14 1.498988211893038E-15 -7.656973318581995E-15 6.830280459540995E-16 q -3.055419999475857E-15 6.689881092790437E-15 1.164343911810382E-13 -4.50182180793299E-15 6.019494301312849E-14 -1.527927230381395E-15 tp 2.330645065507157E-14 1.164343911810382E-13 4.429248948234406E-9 -2.222885702025641E-11 1.268480370775736E-9 2.655755996823961E-13 node 1.498988211893038E-15 -4.50182180793299E-15 -2.222885702025641E-11 3.541527309567898E-9 -3.538644122373587E-9 1.905132728539042E-11 peri -7.656973318581995E-15 6.019494301312849E-14 1.268480370775736E-9 -3.538644122373587E-9 3.89601675175295E-9 -1.893139746714161E-11 i 6.830280459540995E-16 -1.527927230381395E-15 2.655755996823961E-13 1.905132728539042E-11 -1.893139746714161E-11 1.702352413215794E-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 15.3   n/a MPO452815   47213 (1999 TC293)          Discovered 1999-Oct-12 by LINEAR at Socorro Reference: 20020921/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1999 TC293 = 1998 KA47  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-26 10:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin