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JPL Small-Body Database Browser
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146308 (2001 KJ28)
Classification: Main-belt Asteroid          SPK-ID: 2146308
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3007356017355252 5.4637e-08  
a 2.561248933595465 1.5797e-08 au
q 1.790990194356161 1.4247e-07 au
i 6.390547897018307 4.3009e-06 deg
node 92.81226187437744 4.5812e-05 deg
peri 245.3484699421175 4.6886e-05 deg
M 165.3233045277311 9.3e-06 deg
tp 2458312.944612436765
(2018-Jul-13.44461244)
3.9545e-05 TDB
period 1497.187224933831
4.10
1.3852e-05
3.792e-08
d
yr
n .2404508895111033 2.2246e-09 deg/d
Q 3.331507672834769 2.0548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      6806 days (18.63 yr)  
   first obs. used      2001-05-18  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57099  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 19:22:46  

Additional Information
 Earth MOID = .793179 au 
 Jupiter MOID = 2.09487 au 
 T_jup = 3.361 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457045.5 (2015-Jan-23.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3028020682623991 5.4984e-08  
q 1.784193926117324 1.4348e-07 au
tp 2456813.122392359527
(2014-Jun-04.62239236)
4.355e-05 TDB
node 93.08600502293726 4.5776e-05 deg
peri 244.6379363010867 4.6819e-05 deg
i 6.395411608499967 4.2978e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      6806 days (18.63 yr)  
   first obs. used      2001-05-18  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57099  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 19:22:46  

Additional Information
 Jupiter MOID = 2.09487 au 
 T_jup = 3.361 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.023220545782202E-15 -7.867441146165365E-15 1.561529849533622E-12 -2.93711403336692E-14 2.775210803067865E-13 -1.110597881531464E-14
q -7.867441146165365E-15 2.058582573440876E-14 -4.233951218700365E-12 7.800264281884788E-14 -7.625833217560514E-13 2.958205276746793E-14
tp 1.561529849533622E-12 -4.233951218700365E-12 1.896614364145249E-9 -3.082496430470377E-11 4.53280111669703E-10 -8.777686510608254E-12
node -2.93711403336692E-14 7.800264281884788E-14 -3.082496430470377E-11 2.095455453418012E-9 -2.088547964687582E-9 -7.268557355623815E-11
peri 2.775210803067865E-13 -7.625833217560514E-13 4.53280111669703E-10 -2.088547964687582E-9 2.192004748530187E-9 7.045319082974192E-11
i -1.110597881531464E-14 2.958205276746793E-14 -8.777686510608254E-12 -7.268557355623815E-11 7.045319082974192E-11 1.847123294584047E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO459677  

146308 (2001 KJ28)          Discovered 2001-May-18 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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