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JPL Small-Body Database Browser
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(2021 JK7)
Classification: Apollo [NEO]          SPK-ID: 54145574
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2459347.5 (2021-May-13.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5555222317185315 0.0012712  
a 1.584687282572068 0.0043522 au
q .7043582667816575 7.9982e-05 au
i 31.72952266464228 0.057092 deg
node 57.77026356389577 0.0013909 deg
peri 267.8355402175711 0.058008 deg
M 328.157668628698 0.16281 deg
tp 2459411.948993986136
(2021-Jul-16.44899399)
0.064023 TDB
period 728.641303441729
1.99
3.0017
0.008218
d
yr
n .4940702624179333 0.0020354 deg/d
Q 2.465016298362478 0.00677 au
  Orbit Determination Parameters
   # obs. used (total)      30  
   data-arc span      10 days  
   first obs. used      2021-05-10  
   last obs. used      2021-05-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .55691  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-20 06:21:49  

Additional Information
 Earth MOID = .0420797 au 
 Jupiter MOID = 3.44352 au 
 T_jup = 4.064 
[ 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 24.36   .34222 MPO622863 autocmod 2.9c

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