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117499 (2005 CQ21)
Classification: Main-belt Asteroid          SPK-ID: 2117499
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08277313387158634 3.347e-08  
a 2.388364412316276 1.0746e-08 au
q 2.190672005081489 8.0076e-08 au
i 4.22019751632848 4.118e-06 deg
node 148.2627887329471 5.6491e-05 deg
peri 341.8344722451394 6.362e-05 deg
M 67.32332775961477 2.8173e-05 deg
tp 2458748.377045376288
(2019-Sep-21.87704538)
0.00010545 TDB
period 1348.184450843251
3.69
9.0989e-06
2.491e-08
d
yr
n .2670257766100405 1.8022e-09 deg/d
Q 2.586056819551064 1.1636e-08 au
  Orbit Determination Parameters
   # obs. used (total)      596  
   data-arc span      8074 days (22.11 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:50:10  

Additional Information
 Earth MOID = 1.20567 au 
 Jupiter MOID = 2.4349 au 
 T_jup = 3.525 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO459554  

117499 (2005 CQ21)          Discovered 2005-Feb-02 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2005 CQ21 = 1998 HF72 = 2002 LN9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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