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JPL Small-Body Database Browser
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392489 (2011 KM8)
Classification: Main-belt Asteroid          SPK-ID: 2392489
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2273287279090189 5.0474e-08  
a 2.320168817882762 2.4435e-08 au
q 1.792727791979301 1.1078e-07 au
i 5.02590716155518 1.1243e-05 deg
node 175.295654066926 7.1539e-05 deg
peri 123.3704002290635 7.8692e-05 deg
M 163.016759231294 2.8936e-05 deg
tp 2458415.968984666597
(2018-Oct-24.46898467)
0.00010211 TDB
period 1290.856023100409
3.53
2.0392e-05
5.583e-08
d
yr
n .2788847040705155 4.4057e-09 deg/d
Q 2.847609843786222 2.999e-08 au
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      6628 days (18.15 yr)  
   first obs. used      2000-03-03  
   last obs. used      2018-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66595  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:56:37  

Additional Information
 Earth MOID = .783267 au 
 Jupiter MOID = 2.39624 au 
 T_jup = 3.538 
[ 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 17.8   n/a MPO450378  

392489 (2011 KM8)          Discovered 2007-Feb-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2011 KM8 = 2008 UA333 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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