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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0502006502819906 5.9241e-08  
a 2.994843527967565 3.3584e-08 AU
q 2.844500435370782 1.7896e-07 AU
i 7.994547830952453 7.7075e-06 deg
node 262.5943639944793 4.9533e-05 deg
peri 127.6489567981046 9.7022e-05 deg
M 136.8162356669236 8.2215e-05 deg
tp 2456281.059688782442
(2012-Dec-19.55968878)
0.00043238 JED
period 1893.039307621705
5.18
3.1843e-05
8.718e-08
d
yr
n .1901703776306057 3.1988e-09 deg/d
Q 3.145186620564347 3.527e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      688  
   data-arc span      5954 days (16.30 yr)  
   first obs. used      1997-11-24  
   last obs. used      2014-03-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57209  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 00:17:04  

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 13.6 mag n/a MPO253538  

26218 (1997 WJ13)          Discovered 1997-Nov-24 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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