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(2021 CR2)
Classification: Apollo [NEO]          SPK-ID: 54110693
[ 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 2459254.5 (2021-Feb-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .282179040244043 0.00076929  
a 1.27422950553214 0.0013457 au
q .9146686466104397 1.4468e-05 au
i 24.06524888830509 0.039703 deg
node 138.7699443041009 0.0012391 deg
peri 56.08402689479892 0.0469 deg
M 329.0842862135149 0.085168 deg
tp 2459299.617672754890
(2021-Mar-26.11767275)		 0.052819 TDB
period 525.3756165533133
1.44		 0.83228
0.002279		 d
yr
n .6852240352564373 0.0010855 deg/d
Q 1.633790364453841 0.0017255 au
   Orbit Determination Parameters
   # obs. used (total)      36  
   data-arc span      5 days  
   first obs. used      2021-02-06  
   last obs. used      2021-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .5247  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-28 05:51:52  

Additional Information
 Earth MOID = .0238666 au 
 Jupiter MOID = 3.42147 au 
 T_jup = 4.951 
[ 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   .56452 E2021-CK0 autocmod 2.8

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