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344757 (2003 WK20)
Classification: Main-belt Asteroid          SPK-ID: 2344757
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873875931853489 8.0391e-08  
a 2.772416088268369 4.947e-08 au
q 2.252899710179419 2.3416e-07 au
i 13.82365461526404 9.7662e-06 deg
node 37.75079285880804 2.5884e-05 deg
peri 17.44629384394072 3.7279e-05 deg
M 212.6832961457238 3.6285e-05 deg
tp 2459690.478462921266
(2022-Apr-20.97846292)
0.00018589 TDB
period 1686.110537046512
4.62
4.513e-05
1.236e-07
d
yr
n .213509133648258 5.7147e-09 deg/d
Q 3.291932466357318 5.874e-08 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      5694 days (15.59 yr)  
   first obs. used      2003-10-25  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62206  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:31:07  

Additional Information
 Earth MOID = 1.26728 au 
 Jupiter MOID = 2.13014 au 
 T_jup = 3.269 
[ 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 16.2   n/a MPO434169  

344757 (2003 WK20)          Discovered 2003-Oct-25 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Alternate Designations
 2003 WK20 = 2012 RH28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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