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268442 (2005 WK23)
Classification: Main-belt Asteroid          SPK-ID: 2268442
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1167688521517006 9.8014e-08  
a 2.582858731017088 2.5707e-08 au
q 2.281261281726225 2.691e-07 au
i 1.854955056151082 7.4971e-06 deg
node 337.9849801229376 0.00016577 deg
peri 27.84318732503671 0.00016706 deg
M 224.6787692514306 2.1189e-05 deg
tp 2459570.418618314889
(2021-Dec-21.91861831)
9.2815e-05 TDB
period 1516.175262805384
4.15
2.2636e-05
6.197e-08
d
yr
n .2374395683872924 3.5449e-09 deg/d
Q 2.884456180307951 2.8709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      9652 days (26.43 yr)  
   first obs. used      1994-01-19  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58295  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:12:57  

Additional Information
 Earth MOID = 1.27961 au 
 Jupiter MOID = 2.5712 au 
 T_jup = 3.413 
[ 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 17.0   n/a MPO427488  

268442 (2005 WK23)          Discovered 2005-Nov-21 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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