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(2021 JN)
Classification: Apollo [NEO]          SPK-ID: 54142838
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 2459337.5 (2021-May-03.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .201839516714681 0.0015064  
a 1.273658376549156 0.0026663 au
q 1.016583785366869 0.00020954 au
i 24.96490611264719 0.08719 deg
node 46.78531851136302 0.007943 deg
peri 142.292599239368 0.14514 deg
M 20.56608377031777 0.17007 deg
tp 2459307.506512882619
(2021-Apr-03.00651288)
0.15385 TDB
period 525.0224341612862
1.44
1.6486
0.004514
d
yr
n .6856849852046674 0.0021531 deg/d
Q 1.530732967731443 0.0032044 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      6 days  
   first obs. used      2021-04-30  
   last obs. used      2021-05-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .44977  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-06 06:01:11  

Additional Information
 Earth MOID = .0433231 au 
 Jupiter MOID = 3.46224 au 
 T_jup = 4.964 
[ 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 24.66   .33309 E2021J33 autocmod 2.9c

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