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(2021 JT4)
Classification: Aten [NEO]          SPK-ID: 54144927
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .212763667919157 1.0944e-05  
a .9445150353868552 0.00033607 au
q .7435565520531555 0.00025741 au
i 37.51097426153093 0.039081 deg
node 227.197269298481 0.00043082 deg
peri 236.7388788413925 0.098232 deg
M 308.2960847712494 0.036808 deg
tp 2459248.654033493790
(2021-Feb-03.15403349)
0.059971 TDB
period 335.2831595260849
0.92
0.17895
0.0004899
d
yr
n 1.073719301944219 0.00057306 deg/d
Q 1.145473518720555 0.00040757 au
  Orbit Determination Parameters
   # obs. used (total)      19  
   data-arc span      3 days  
   first obs. used      2021-05-08  
   last obs. used      2021-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .33479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-11 15:42:04  

Additional Information
 Earth MOID = .00990181 au 
 Jupiter MOID = 4.12412 au 
 T_jup = 6.169 
[ 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 25.69   .30625 1 autocmod 2.9c

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