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26218 (1997 WJ13)
Classification: Main-belt Asteroid          SPK-ID: 2026218
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05020065134223769 5.8916e-08  
a 2.994843522645997 3.121e-08 AU
q 2.844500427141087 1.7646e-07 AU
i 7.994544395458905 7.0053e-06 deg
node 262.5943650903955 4.9104e-05 deg
peri 127.648975354041 8.9349e-05 deg
M 136.8162180851848 7.5345e-05 deg
tp 2456281.059783152575
(2012-Dec-19.55978315)
0.0003943 JED
period 1893.039302576064
5.18
2.9592e-05
8.102e-08
d
yr
n .1901703781374792 2.9727e-09 deg/d
Q 3.145186618150908 3.2777e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      711  
   data-arc span      6302 days (17.25 yr)  
   first obs. used      1997-11-24  
   last obs. used      2015-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57242  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 15:21:46  

Additional Information
 Earth MOID = 1.85933 AU 
 T_jup = 3.238 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a MPO324551  

26218 (1997 WJ13)          Discovered 1997-Nov-24 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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