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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07341600152013332 3.8406e-08  
a 1.90952406519887 5.3153e-09 au
q 1.769334443525499 7.2592e-08 au
i 22.09756495368291 5.4375e-06 deg
node 9.019989678569823 1.0513e-05 deg
peri 103.8296563964294 4.7805e-05 deg
M 145.2090571542319 4.2191e-05 deg
tp 2458811.743793415489
(2019-Nov-24.24379342)		 0.00011339 TDB
period 963.7982444977623
2.64		 4.0242e-06
1.102e-08		 d
yr
n .3735221578325212 1.5596e-09 deg/d
Q 2.049713686872241 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.      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 = .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 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 = 3.00397 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 16.20   n/a E2021B55  

101727 (1999 ED7)          Discovered 1999-Mar-15 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast 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 ]
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