+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1040701739805844 4.0323e-08   a 2.25698086740866 9.8044e-09 au q 2.02209647586659 9.1684e-08 au i 2.638020515541037 4.2638e-06 deg node 59.12803241126416 8.5083e-05 deg peri 141.5479973492767 8.711e-05 deg M 332.6882374536188 2.189e-05 deg tp 2459294.458801914144 (2021-Mar-20.95880191) 7.568e-05 TDB period 1238.483551973244 3.39 8.07e-06 2.209e-08 d yr n .2906780630444555 1.8941e-09 deg/d Q 2.49186525895073 1.0825e-08 au   Orbit Determination Parameters    # obs. used (total)      816      data-arc span      8683 days (23.77 yr)      first obs. used      1997-03-13      last obs. used      2020-12-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57805      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:25:34   Additional Information  Earth MOID = 1.01892 au   Jupiter MOID = 2.4631 au   T_jup = 3.614  [ hide covariance matrix ] Orbital Elements at Epoch 2456514.5 (2013-Aug-10.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .104265699674929 4.0396e-08   q 2.02220943669031 9.1863e-08 au tp 2456817.340545303805 (2014-Jun-08.84054530) 6.6976e-05 TDB node 59.15740143191361 8.5034e-05 deg peri 141.4498831449921 8.7048e-05 deg i 2.638981093762572 4.2645e-06 deg   Orbit Determination Parameters    # obs. used (total)      816      data-arc span      8683 days (23.77 yr)      first obs. used      1997-03-13      last obs. used      2020-12-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57805      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:25:34   Additional Information  Jupiter MOID = 2.4631 au   T_jup = 3.614  Orbit Covariance (6×6)   e q tp node peri i e 1.63180059829125E-15 -3.693881197416075E-15 -8.754366412920699E-14 4.527058981399326E-15 -1.863366398063489E-14 -3.826620913987158E-17 q -3.693881197416075E-15 8.438839206561048E-15 4.639835682832989E-13 -8.96501392052284E-15 1.100513545289936E-13 1.373693683353622E-16 tp -8.754366412920699E-14 4.639835682832989E-13 4.48576328550541E-9 9.768060341413607E-12 1.25861538423538E-9 6.16203445880693E-13 node 4.527058981399326E-15 -8.96501392052284E-15 9.768060341413607E-12 7.230800765356595E-9 -7.220249534263941E-9 -8.293739474806341E-11 peri -1.863366398063489E-14 1.100513545289936E-13 1.25861538423538E-9 -7.220249534263941E-9 7.577270236111045E-9 8.303701359061266E-11 i -3.826620913987158E-17 1.373693683353622E-16 6.16203445880693E-13 -8.293739474806341E-11 8.303701359061266E-11 1.818561543707742E-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 15.93   n/a E2021B55   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 ] 2021-Mar-02 05:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin