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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08301975964227545 4.202e-08  
a 2.388932323136155 1.3904e-08 au
q 2.190603735867728 1.0558e-07 au
i 4.219748954313583 4.314e-06 deg
node 148.2645690254415 6.0873e-05 deg
peri 341.896521824731 6.761e-05 deg
M 320.4703606297093 2.846e-05 deg
tp 2458748.589596008935
(2019-Sep-22.08959601)
0.00010677 TDB
period 1348.665341057592
3.69
1.1774e-05
3.224e-08
d
yr
n .2669305638993409 2.3304e-09 deg/d
Q 2.587260910404581 1.5059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      499  
   data-arc span      7560 days (20.70 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64366  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 02:35:43  

Additional Information
 Earth MOID = 1.206 au 
 Jupiter MOID = 2.43524 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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