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146423 (2001 QK228)
Classification: Main-belt Asteroid          SPK-ID: 2146423
[ 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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07318008090029136 4.7207e-08  
a 2.646655443218756 1.7919e-08 au
q 2.452972983768811 1.2404e-07 au
i 14.3209768234551 5.3907e-06 deg
node 195.5959388387102 1.8796e-05 deg
peri 234.9964976924675 3.9385e-05 deg
M 45.74957242034529 3.3481e-05 deg
tp 2458800.638531261827
(2019-Nov-13.13853126)		 0.00014664 TDB
period 1572.695108156798
4.31		 1.5972e-05
4.373e-08		 d
yr
n .2289064155746759 2.3247e-09 deg/d
Q 2.840337902668701 1.923e-08 au
   Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      6730 days (18.43 yr)  
   first obs. used      2001-08-24  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54599  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:37:18  

Additional Information
 Earth MOID = 1.49037 au 
 Jupiter MOID = 2.41061 au 
 T_jup = 3.344 
[ 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 15.4   n/a MPO449800  
diameter diameter 2.666 km 0.541 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.227   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146423 (2001 QK228)          Discovered 2001-Aug-24 by LONEOS at Anderson Mesa
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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