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(2021 CU3)
Classification: Apollo [NEO]          SPK-ID: 54111258
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 2459255.5 (2021-Feb-10.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7799236471756298 0.00087275  
a 2.403705258050243 0.0085122 au
q .5289986864564592 0.0002245 au
i 17.80830923968037 0.02194 deg
node 144.5401874084912 0.0017014 deg
peri 101.7828907982639 0.0093037 deg
M 345.3672667933378 0.085225 deg
tp 2459310.827774387005
(2021-Apr-06.32777439)
0.028346 TDB
period 1361.194692612401
3.73
7.2306
0.0198
d
yr
n .2644735554390746 0.0014049 deg/d
Q 4.278411829644027 0.015151 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      13 days  
   first obs. used      2021-02-07  
   last obs. used      2021-02-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .54373  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:25:07  

Additional Information
 Earth MOID = .0411191 au 
 Jupiter MOID = 1.55351 au 
 T_jup = 2.975 
[ 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 22.65   .46944 E2021D74 autocmod 2.8

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