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201498 (2003 KN9)
Classification: Main-belt Asteroid          SPK-ID: 2201498
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1711119375120149 5.2948e-08  
a 2.23193491825738 1.7004e-08 au
q 1.850024209993639 1.2293e-07 au
i 8.205219462354936 5.0928e-06 deg
node 276.6337537861541 4.467e-05 deg
peri 326.7339946142084 5.1084e-05 deg
M 277.7697201595835 2.8251e-05 deg
tp 2458878.695425492470
(2020-Jan-30.19542549)
9.6961e-05 TDB
period 1217.925481606653
3.33
1.3918e-05
3.811e-08
d
yr
n .2955845866079576 3.3779e-09 deg/d
Q 2.613845626521121 1.9914e-08 au
  Orbit Determination Parameters
   # obs. used (total)      343  
   data-arc span      6764 days (18.52 yr)  
   first obs. used      2000-08-03  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55785  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 17:36:42  

Additional Information
 Earth MOID = .842202 au 
 Jupiter MOID = 2.43911 au 
 T_jup = 3.609 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO433319  
diameter diameter 2.273 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201498 (2003 KN9)          Discovered 2003-May-25 by Broughton, J. at Reedy Creek
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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