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(2021 CR2)
Classification: Apollo [NEO]          SPK-ID: 54110693
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459254.5 (2021-Feb-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2821790396985227 0.00076929  
a 1.274229504305151 0.0013457 au
q .9146686464247992 1.4468e-05 au
i 24.06524888676042 0.039703 deg
node 138.7699442008976 0.0012391 deg
peri 56.0840270415421 0.0469 deg
M 329.0842861043905 0.085168 deg
tp 2459299.617672848976
(2021-Mar-26.11767285)
0.052819 TDB
period 525.3756157944663
1.44
0.83228
0.002279
d
yr
n .6852240362461677 0.0010855 deg/d
Q 1.633790362185503 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .5247  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:25:01  

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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