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(2020 HR7)
Classification: Apollo [NEO]          SPK-ID: 54016787
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 2458966.5 (2020-Apr-27.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3743016385969933 0.00070477  
a 1.529547158438073 0.0017385 au
q .9570351507233276 1.0137e-05 au
i 25.27201768323526 0.026683 deg
node 215.8403643043681 0.00046548 deg
peri 317.7922402516905 0.025152 deg
M 19.51973070277962 0.048753 deg
tp 2458929.036007728375
(2020-Mar-20.53600773)
0.029698 TDB
period 690.9438159341223
1.89
1.178
0.003225
d
yr
n .5210264448395092 0.00088833 deg/d
Q 2.102059166152819 0.0023893 au
  Orbit Determination Parameters
   # obs. used (total)      31  
   data-arc span      5 days  
   first obs. used      2020-04-26  
   last obs. used      2020-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .49662  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-01 06:00:34  

Additional Information
 Earth MOID = .0215755 au 
 Jupiter MOID = 2.97803 au 
 T_jup = 4.311 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.4   .7561 MPO546172 autocmod 2.8

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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