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74493 (1999 CQ122)
Classification: Main-belt Asteroid          SPK-ID: 2074493
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1117037469253345 3.8954e-08  
a 3.167172520410884 2.6595e-08 au
q 2.813387482722033 1.3068e-07 au
i 22.13287623415447 7.8797e-06 deg
node .91874047909571 1.152e-05 deg
peri 86.3717200272785 3.6503e-05 deg
M 313.6839432426534 3.5206e-05 deg
tp 2459265.371410674343
(2021-Feb-19.87141067)		 0.00020259 TDB
period 2058.761356613945
5.64		 2.5931e-05
7.1e-08		 d
yr
n .1748624233903893 2.2025e-09 deg/d
Q 3.520957558099734 2.9566e-08 au
   Orbit Determination Parameters
   # obs. used (total)      901  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1999-01-14  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47014  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:26:06  

Additional Information
 Earth MOID = 1.93488 au 
 Jupiter MOID = 1.80527 au 
 T_jup = 3.079 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5   n/a MPO412635  
diameter diameter 9.359 km 0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.088   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74493 (1999 CQ122)          Discovered 1999-Feb-11 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CQ122 = 2000 JJ79 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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