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(2021 CU8)
Classification: Apollo [NEO]          SPK-ID: 54121899
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 2459259.5 (2021-Feb-14.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5054445233125783 0.0014758  
a 1.685893908431898 0.0043747 au
q .8337680655289577 0.00032446 au
i 4.292241859674586 0.010112 deg
node 148.3957830505723 0.0006858 deg
peri 59.78314550177749 0.0055953 deg
M 339.4494621484551 0.093098 deg
tp 2459305.141980495131
(2021-Mar-31.64198050)
0.029115 TDB
period 799.5466151272504
2.19
3.1121
0.00852
d
yr
n .4502551736057375 0.0017525 deg/d
Q 2.538019751334838 0.0065859 au
  Orbit Determination Parameters
   # obs. used (total)      23  
   data-arc span      4 days  
   first obs. used      2021-02-13  
   last obs. used      2021-02-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .45274  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-17 05:22:23  

Additional Information
 Earth MOID = .00258653 au 
 Jupiter MOID = 2.42707 au 
 T_jup = 4.066 
[ 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 28.25   .47607 E2021D18 autocmod 2.8

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