+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101727 (1999 ED7) Classification: Inner Main-belt Asteroid          SPK-ID: 2101727 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07341600097815494 3.8406e-08   a 1.909524064030752 5.3153e-09 au q 1.76933444347806 7.2592e-08 au i 22.09756498155007 5.4375e-06 deg node 9.019989619988026 1.0513e-05 deg peri 103.8296580387185 4.7805e-05 deg M 145.2090560359177 4.2191e-05 deg tp 2458811.743796766182 (2019-Nov-24.24379677) 0.00011339 TDB period 963.7982436133819 2.64 4.0242e-06 1.102e-08 d yr n .3735221581752647 1.5596e-09 deg/d Q 2.049713684583444 5.7055e-09 au   Orbit Determination Parameters    # obs. used (total)      990      data-arc span      7761 days (21.25 yr)      first obs. used      1999-02-20      last obs. used      2020-05-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51158      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:38:16   Additional Information  Earth MOID = .84859 au   Jupiter MOID = 3.00397 au   T_jup = 3.845  [ hide covariance matrix ] Orbital Elements at Epoch 2456952.5 (2014-Oct-22.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07356053746290607 3.8413e-08   q 1.769232696306191 7.2667e-08 au tp 2456884.521464063731 (2014-Aug-15.02146406) 0.00011572 TDB node 9.045359567125629 1.0511e-05 deg peri 103.9723723510949 4.7699e-05 deg i 22.10022804874308 5.4378e-06 deg   Orbit Determination Parameters    # obs. used (total)      990      data-arc span      7761 days (21.25 yr)      first obs. used      1999-02-20      last obs. used      2020-05-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51158      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:38:16   Additional Information  Jupiter MOID = 3.00397 au   T_jup = 3.845  Orbit Covariance (6×6)   e q tp node peri i e 1.47557793523221E-15 -2.7850215343354E-15 4.164568137828581E-13 -7.033335730325917E-15 1.404218372917502E-13 -1.899249270062259E-14 q -2.7850215343354E-15 5.280527469314691E-15 -9.977779060126794E-13 1.352677072621737E-14 -3.509684768380455E-13 3.588590429724513E-14 tp 4.164568137828581E-13 -9.977779060126794E-13 1.338996813306034E-8 -4.055117584597793E-11 5.391116380919535E-9 -2.377001557143124E-11 node -7.033335730325917E-15 1.352677072621737E-14 -4.055117584597793E-11 1.104833569884066E-10 -1.179426228346228E-10 -8.213534446830063E-12 peri 1.404218372917502E-13 -3.509684768380455E-13 5.391116380919535E-9 -1.179426228346228E-10 2.275214671761147E-9 -1.327868969158946E-12 i -1.899249270062259E-14 3.588590429724513E-14 -2.377001557143124E-11 -8.213534446830063E-12 -1.327868969158946E-12 2.956988841314733E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.20   n/a E2021B55   101727 (1999 ED7)          Discovered 1999-Mar-15 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1999 ED7 = 2000 QT212  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 05:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin