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JPL Small-Body Database Browser
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146307 (2001 KK21)
Classification: Main-belt Asteroid          SPK-ID: 2146307
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1530605103109909 9.07e-08  
a 2.282393445696609 1.5068e-08 au
q 1.933049140167825 2.0392e-07 au
i 24.75545060954843 1.0998e-05 deg
node 207.5734820987164 1.2839e-05 deg
peri 336.6593005619559 2.6024e-05 deg
M 123.9511961311532 2.1951e-05 deg
tp 2458166.856924959296
(2018-Feb-17.35692496)
7.5628e-05 TDB
period 1259.459463783401
3.45
1.2472e-05
3.415e-08
d
yr
n .2858369088899172 2.8306e-09 deg/d
Q 2.631737751225392 1.7375e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      6752 days (18.49 yr)  
   first obs. used      2001-05-23  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54003  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 11:35:35  

Additional Information
 Earth MOID = .943919 au 
 Jupiter MOID = 2.36027 au 
 T_jup = 3.468 
[ 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 16.2   n/a MPO280760  

146307 (2001 KK21)          Discovered 2001-May-23 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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