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25286 (1998 WC8)
Classification: Main-belt Asteroid          SPK-ID: 2025286
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2659675811276422 5.2817e-08  
a 2.728420246636042 2.4494e-08 AU
q 2.002748913338569 1.442e-07 AU
i 8.830312063550904 7.1743e-06 deg
node 107.8381429618676 4.2746e-05 deg
peri 291.1558650132696 4.5372e-05 deg
M 208.7104493527517 1.8168e-05 deg
tp 2457692.285977289207
(2016-Oct-30.78597729)
8.9023e-05 JED
period 1646.134519923263
4.51
2.2166e-05
6.069e-08
d
yr
n .2186941563055138 2.9449e-09 deg/d
Q 3.454091579933515 3.1008e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      9348 days (25.59 yr)  
   first obs. used      1989-11-06  
   last obs. used      2015-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55599  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:36:33  

Additional Information
 Earth MOID = 1.0306 AU 
 T_jup = 3.287 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO263567  

25286 (1998 WC8)          Discovered 1998-Nov-18 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WC8 = 1989 VY1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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