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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714273106053871 3.1902e-08  
a 2.232495890911617 1.2886e-08 au
q 1.849785124395061 6.6453e-08 au
i 8.204938719961024 4.8342e-06 deg
node 276.633199384919 3.9242e-05 deg
peri 326.735940841096 4.3837e-05 deg
M 35.98999313043293 2.0086e-05 deg
tp 2458878.695399366844
(2020-Jan-30.19539937)
6.7998e-05 TDB
period 1218.384679013929
3.34
1.0549e-05
2.888e-08
d
yr
n .29547318363471 2.5582e-09 deg/d
Q 2.615206657428174 1.5095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      7378 days (20.20 yr)  
   first obs. used      2000-08-03  
   last obs. used      2020-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:05:24  

Additional Information
 Earth MOID = .842154 au 
 Jupiter MOID = 2.43782 au 
 T_jup = 3.608 
[ 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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