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74494 (1999 CP123)
Classification: Main-belt Asteroid          SPK-ID: 2074494
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1624177035021566 3.7871e-08  
a 2.726084214897599 1.6373e-08 au
q 2.283319877160451 1.0484e-07 au
i 15.01622312706569 6.3182e-06 deg
node 20.70722808671281 1.5668e-05 deg
peri 94.03341868217653 2.5616e-05 deg
M 279.894418119073 1.8531e-05 deg
tp 2459366.320136636453
(2021-May-31.82013664)
8.5276e-05 TDB
period 1644.020879654574
4.50
1.4811e-05
4.055e-08
d
yr
n .2189753210893767 1.9728e-09 deg/d
Q 3.168848552634747 1.9033e-08 au
  Orbit Determination Parameters
   # obs. used (total)      941  
   data-arc span      7065 days (19.34 yr)  
   first obs. used      1999-01-14  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57577  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 15:23:10  

Additional Information
 Earth MOID = 1.35685 au 
 Jupiter MOID = 2.07382 au 
 T_jup = 3.288 
[ 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 14.5   n/a MPO449470  

74494 (1999 CP123)          Discovered 1999-Feb-11 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CP123 = 2002 TS289 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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