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(2021 CR3)
Classification: Apollo [NEO]          SPK-ID: 54111254
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .642451039780303 0.00057295  
a 1.063782708243729 0.0008473 au
q .3803544012322387 0.00030654 au
i 8.818479488790238 0.012723 deg
node 150.2398522619222 0.0045149 deg
peri 128.8101853635225 0.0053259 deg
M 304.0094543921018 0.099612 deg
tp 2459317.828979389091
(2021-Apr-13.32897939)
0.036421 TDB
period 400.7539547338781
1.10
0.4788
0.001311
d
yr
n .8983067933516941 0.0010733 deg/d
Q 1.74721101525522 0.0013917 au
  Orbit Determination Parameters
   # obs. used (total)      48  
   data-arc span      12 days  
   first obs. used      2021-02-07  
   last obs. used      2021-02-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .39599  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-20 05:21:18  

Additional Information
 Earth MOID = .00991054 au 
 Jupiter MOID = 3.4313 au 
 T_jup = 5.576 
[ 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 22.77   .36812 E2021D54 autocmod 2.8

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