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268170 (2004 WK4)
Classification: Main-belt Asteroid          SPK-ID: 2268170
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .127799656446131 7.4876e-08  
a 2.837715429932441 3.0585e-08 au
q 2.47505637289519 2.0575e-07 au
i 3.095817816538001 5.7689e-06 deg
node 70.86357292417139 0.00011973 deg
peri 271.8804159079887 0.00012197 deg
M 151.5323219475021 2.2454e-05 deg
tp 2458265.555631284364
(2018-May-27.05563128)
0.00010751 TDB
period 1746.02995147987
4.78
2.8228e-05
7.728e-08
d
yr
n .2061820300933998 3.3333e-09 deg/d
Q 3.200374486969692 3.4493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      6498 days (17.79 yr)  
   first obs. used      2002-04-19  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56005  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 13:01:49  

Additional Information
 Earth MOID = 1.46951 au 
 Jupiter MOID = 2.1885 au 
 T_jup = 3.296 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO413198  

268170 (2004 WK4)          Discovered 2004-Nov-17 by CINEOS at Campo Imperatore
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

Alternate Designations
 2004 WK4 = 2004 TG365 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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