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129643 (1998 KH6)
Classification: Inner Main-belt Asteroid          SPK-ID: 2129643
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05654211255563189 5.5257e-08  
a 1.93934596648223 7.8897e-09 au
q 1.829691248561081 1.079e-07 au
i 20.00746463846266 7.9336e-06 deg
node 224.5775041409908 1.157e-05 deg
peri 325.3938162622148 5.3868e-05 deg
M 92.76501909411179 5.3213e-05 deg
tp 2458746.307284129057
(2019-Sep-19.80728413)
0.00014578 TDB
period 986.4642793928758
2.70
6.0197e-06
1.648e-08
d
yr
n .3649397221170175 2.227e-09 deg/d
Q 2.049000684403379 8.3358e-09 au
  Orbit Determination Parameters
   # obs. used (total)      516  
   data-arc span      8037 days (22.00 yr)  
   first obs. used      1998-04-25  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54907  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:45:55  

Additional Information
 Earth MOID = .835767 au 
 Jupiter MOID = 2.94347 au 
 T_jup = 3.829 
[ 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 16.6   n/a MPO412839  

129643 (1998 KH6)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1998 KH6 = 1999 XA9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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