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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 ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2661560068033633 5.3771e-08  
a 2.728001957078821 2.4803e-08 AU
q 2.001927849630962 1.4627e-07 AU
i 8.830294093911771 7.2597e-06 deg
node 107.8386504182006 4.3916e-05 deg
peri 291.16463892 4.6562e-05 deg
M 164.9536657007261 1.7825e-05 deg
tp 2456046.406992744669
(2012-Apr-28.90699274)
7.61e-05 JED
period 1645.755985225881
4.51
2.2445e-05
6.145e-08
d
yr
n .2187444573993695 2.9832e-09 deg/d
Q 3.454076064526679 3.1404e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      799  
   data-arc span      8965 days (24.54 yr)  
   first obs. used      1989-11-06  
   last obs. used      2014-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56497  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:17:31  

Additional Information
 Earth MOID = 1.0289 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 (399)
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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