+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07351895571647532 3.8413e-08   a 1.909455759942908 5.3686e-09 au q 1.769074566485097 7.2629e-08 au i 22.09785309566643 5.4374e-06 deg node 9.022666883437896 1.0513e-05 deg peri 103.8230605546554 4.7718e-05 deg M 70.49676757029921 4.2187e-05 deg tp 2458811.774957765252 (2019-Nov-24.27495777) 0.00011316 TDB period 963.7465311690891 2.64 4.0645e-06 1.113e-08 d yr n .3735422005237164 1.5754e-09 deg/d Q 2.049836953400719 5.7633e-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.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51149      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:58:50   Additional Information  Earth MOID = .848743 au   Jupiter MOID = 3.00496 au   T_jup = 3.845  [ hide covariance matrix ] Orbital Elements at Epoch 2456952.5 (2014-Oct-22.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07356053812993903 3.8413e-08   q 1.769232696009425 7.2667e-08 au tp 2456884.521458477084 (2014-Aug-15.02145848) 0.00011571 TDB node 9.045359620307186 1.0511e-05 deg peri 103.9723705299615 4.7699e-05 deg i 22.10022802258753 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.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51149      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:58:50   Additional Information  Jupiter MOID = 3.00496 au   T_jup = 3.845  Orbit Covariance (6×6)   e q tp node peri i e 1.475577245109132E-15 -2.785020512007584E-15 4.164581375147374E-13 -7.0333316077476E-15 1.40422431093266E-13 -1.899248955690255E-14 q -2.785020512007584E-15 5.280526236106918E-15 -9.977804540568674E-13 1.352676667441639E-14 -3.50969553308316E-13 3.588590011578538E-14 tp 4.164581375147374E-13 -9.977804540568674E-13 1.338994531086631E-8 -4.055115055328436E-11 5.391107677980471E-9 -2.377002072893646E-11 node -7.0333316077476E-15 1.352676667441639E-14 -4.055115055328436E-11 1.104833582386592E-10 -1.179426143351888E-10 -8.213531433537281E-12 peri 1.40422431093266E-13 -3.50969553308316E-13 5.391107677980471E-9 -1.179426143351888E-10 2.275211448729762E-9 -1.327876429905073E-12 i -1.899248955690255E-14 3.588590011578538E-14 -2.377002072893646E-11 -8.213531433537281E-12 -1.327876429905073E-12 2.956988602808342E-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 16.1   n/a MPO459476   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-Jan-22 22:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin