+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100546 (1997 EU32) Classification: Main-belt Asteroid          SPK-ID: 2100546 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1041804177800782 4.033e-08   a 2.257117556619791 9.851e-09 au q 2.021970106592391 9.1699e-08 au i 2.638083160499911 4.2751e-06 deg node 59.1328005301506 8.5078e-05 deg peri 141.5403277989146 8.7128e-05 deg M 274.5689492489938 2.186e-05 deg tp 2459294.429341954850 (2021-Mar-20.92934195) 7.6382e-05 TDB period 1238.596062831401 3.39 8.1086e-06 2.22e-08 d yr n .2906516586021182 1.9028e-09 deg/d Q 2.49226500664719 1.0877e-08 au   Orbit Determination Parameters    # obs. used (total)      808      data-arc span      8422 days (23.06 yr)      first obs. used      1997-03-13      last obs. used      2020-04-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5772      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:05:37   Additional Information  Earth MOID = 1.01963 au   Jupiter MOID = 2.46381 au   T_jup = 3.614  [ hide covariance matrix ] Orbital Elements at Epoch 2456491.5 (2013-Jul-18.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1043080780829768 4.0411e-08   q 2.022180161150994 9.1902e-08 au tp 2456817.273082675052 (2014-Jun-08.77308267) 6.7465e-05 TDB node 59.1597470743806 8.5027e-05 deg peri 141.4289149595918 8.7065e-05 deg i 2.639117797603069 4.2759e-06 deg   Orbit Determination Parameters    # obs. used (total)      808      data-arc span      8422 days (23.06 yr)      first obs. used      1997-03-13      last obs. used      2020-04-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5772      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:05:37   Additional Information  Jupiter MOID = 2.46381 au   T_jup = 3.614  Orbit Covariance (6×6)   e q tp node peri i e 1.633040829782664E-15 -3.696494035522216E-15 -7.917126872480153E-14 4.603553646690134E-15 -1.645325655982864E-14 -3.506276407934348E-17 q -3.696494035522216E-15 8.445945366226032E-15 4.559103994781284E-13 -9.022926157064753E-15 1.078587860714633E-13 1.332218510160979E-16 tp -7.917126872480153E-14 4.559103994781284E-13 4.551582470667238E-9 9.882468900214711E-12 1.275273190953178E-9 6.385753283567762E-13 node 4.603553646690134E-15 -9.022926157064753E-15 9.882468900214711E-12 7.229570556858596E-9 -7.218992336922092E-9 -8.291332040747334E-11 peri -1.645325655982864E-14 1.078587860714633E-13 1.275273190953178E-9 -7.218992336922092E-9 7.580243544090107E-9 8.301860356826159E-11 i -3.506276407934348E-17 1.332218510160979E-16 6.385753283567762E-13 -8.291332040747334E-11 8.301860356826159E-11 1.82829674611636E-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 MPO253938   100546 (1997 EU32)          Discovered 1997-Mar-13 by Antonini, P. at Bedoin Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1997 EU32 = 2002 TA196  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Nov-27 12:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin