+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   46503 (3191 T-3) Classification: Main-belt Asteroid          SPK-ID: 2046503 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1123648887494342 3.7157e-08   a 2.364917805077276 8.8412e-09 au q 2.099184079008212 8.9152e-08 au i 7.388281774417439 4.7878e-06 deg node 39.28936477201119 3.1519e-05 deg peri 20.50622184689251 3.9931e-05 deg M 231.5534378555959 2.3553e-05 deg tp 2459474.460869532153 (2021-Sep-16.96086953) 8.7495e-05 TDB period 1328.380535710652 3.64 7.4491e-06 2.039e-08 d yr n .2710066809337948 1.5197e-09 deg/d Q 2.63065153114634 9.8346e-09 au   Orbit Determination Parameters    # obs. used (total)      788      data-arc span      15592 days (42.69 yr)      first obs. used      1977-10-07      last obs. used      2020-06-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60359      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 21:40:47   Additional Information  Earth MOID = 1.11283 au   Jupiter MOID = 2.6763 au   T_jup = 3.529  [ hide covariance matrix ] Orbital Elements at Epoch 2457137.5 (2015-Apr-25.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1132180665853013 3.7013e-08   q 2.096514550278843 8.8813e-08 au tp 2456820.943834908757 (2014-Jun-12.44383491) 8.4505e-05 TDB node 39.34162581185396 3.1498e-05 deg peri 20.85203058827531 3.9782e-05 deg i 7.39221540347148 4.7895e-06 deg   Orbit Determination Parameters    # obs. used (total)      788      data-arc span      15592 days (42.69 yr)      first obs. used      1977-10-07      last obs. used      2020-06-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60359      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 21:40:47   Additional Information  Jupiter MOID = 2.6763 au   T_jup = 3.529  Orbit Covariance (6×6)   e q tp node peri i e 1.36996532628625E-15 -3.274556518622675E-15 -1.386959219247834E-12 -1.363171827685898E-14 -4.017049299116813E-13 6.904129346523827E-17 q -3.274556518622675E-15 7.887706712125349E-15 3.30097527915694E-12 3.260564523036136E-14 9.589482021751967E-13 -1.876644160875242E-16 tp -1.386959219247834E-12 3.30097527915694E-12 7.141018345190334E-9 2.844870224573635E-11 2.068550397228032E-9 -5.327830603783262E-12 node -1.363171827685898E-14 3.260564523036136E-14 2.844870224573635E-11 9.921170129982518E-10 -9.750554206949237E-10 -5.718957141482E-11 peri -4.017049299116813E-13 9.589482021751967E-13 2.068550397228032E-9 -9.750554206949237E-10 1.582619573089627E-9 5.512628677783311E-11 i 6.904129346523827E-17 -1.876644160875242E-16 -5.327830603783262E-12 -5.718957141482E-11 5.512628677783311E-11 2.29394549634337E-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 16.0   n/a MPO436107   46503 (3191 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar Reference: 20020822/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  3191 T-3 = 1999 VL50  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Jul-03 18:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin