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(2021 CQ4)
Classification: Amor [NEO]          SPK-ID: 54111273
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6318812551021923 0.0010927  
a 2.84196228911947 0.0086682 au
q 1.04617959091756 8.5545e-05 au
i 2.021984069190355 0.0025066 deg
node 352.4038059251025 0.0043713 deg
peri 166.2075829922298 0.00053954 deg
M 356.6572028410942 0.014865 deg
tp 2459271.749253601398
(2021-Feb-26.24925360)
0.0020859 TDB
period 1749.951019588052
4.79
8.0062
0.02192
d
yr
n .2057200435728458 0.00094119 deg/d
Q 4.63774498732138 0.014145 au
  Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      19 days  
   first obs. used      2021-02-07  
   last obs. used      2021-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .34886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-27 05:51:14  

Additional Information
 Earth MOID = .0559056 au 
 Jupiter MOID = .359347 au 
 T_jup = 2.976 
[ 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 25.59   .43657 E2021D90 autocmod 2.8

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