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(2021 CT4)
Classification: Apollo [NEO]          SPK-ID: 54114197
[ 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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4689675437964943 0.00042476  
a 1.739377821195069 0.0013355 au
q .9236660766551195 2.976e-05 au
i 7.192538579983536 0.0048064 deg
node 155.5687687673601 0.0019975 deg
peri 56.99141288019508 0.0017806 deg
M 311.2148624143867 0.059354 deg
tp 2459314.046656992175
(2021-Apr-09.54665699)		 0.0073831 TDB
period 837.8944600791197
2.29		 0.96497
0.002642		 d
yr
n .4296483831221493 0.00049481 deg/d
Q 2.555089565735018 0.0019617 au
   Orbit Determination Parameters
   # obs. used (total)      48  
   data-arc span      18 days  
   first obs. used      2021-02-08  
   last obs. used      2021-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .34396  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-27 05:51:14  

Additional Information
 Earth MOID = .0345187 au 
 Jupiter MOID = 2.42733 au 
 T_jup = 4.005 
[ 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 23.32   .4421 E2021-DA1 autocmod 2.8

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