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JPL Small-Body Database Browser
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392488 (2011 KN2)
Classification: Main-belt Asteroid          SPK-ID: 2392488
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1982877245765438 4.1192e-08  
a 2.156862112303962 1.7373e-08 au
q 1.729182831829852 8.3143e-08 au
i 3.883726235440784 5.9313e-06 deg
node 82.53226405706612 8.866e-05 deg
peri 236.1695842552064 9.4251e-05 deg
M 248.9118798135901 3.8047e-05 deg
tp 2459357.523757443444
(2021-May-23.02375744)
0.00012574 TDB
period 1156.996377866187
3.17
1.3979e-05
3.827e-08
d
yr
n .311150498728386 3.7593e-09 deg/d
Q 2.584541392778073 2.0818e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      7473 days (20.46 yr)  
   first obs. used      1999-11-05  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62398  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 01:23:35  

Additional Information
 Earth MOID = .719652 au 
 Jupiter MOID = 2.71434 au 
 T_jup = 3.672 
[ 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 17.9   n/a MPO455786  

392488 (2011 KN2)          Discovered 1999-Nov-05 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2011 KN2 = 1999 VC124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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