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129645 (1998 KA22)
Classification: Main-belt Asteroid          SPK-ID: 2129645
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1792676151228896 3.2486e-08  
a 2.457592938635044 1.6043e-08 au
q 2.017026113583086 8.1828e-08 au
i .2800771147619533 4.6557e-06 deg
node 119.7835433159931 0.000954 deg
peri 125.4808922527434 0.00095414 deg
M 249.0888323874984 1.7616e-05 deg
tp 2459434.046943887100
(2021-Aug-07.54694389)
7.0027e-05 TDB
period 1407.224386498691
3.85
1.3779e-05
3.772e-08
d
yr
n .2558227411732925 2.505e-09 deg/d
Q 2.898159763687003 1.8919e-08 au
  Orbit Determination Parameters
   # obs. used (total)      468  
   data-arc span      7898 days (21.62 yr)  
   first obs. used      1998-04-22  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56965  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 10:36:17  

Additional Information
 Earth MOID = 1.0037 au 
 Jupiter MOID = 2.12473 au 
 T_jup = 3.469 
[ 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 16.2   n/a MPO453775  

129645 (1998 KA22)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1998 KA22 = 2005 CX 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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