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6387 (1989 WC)
Classification: Main-belt Asteroid          SPK-ID: 2006387
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1526920466411493 4.3891e-08  
a 2.623224154274009 1.6794e-08 AU
q 2.222678689359412 1.2023e-07 AU
i 1.61615621212887 4.3217e-06 deg
node 280.2810013693903 0.0002004 deg
peri 154.2204815870197 0.00020117 deg
M 313.5290070930676 2.1034e-05 deg
tp 2457200.823076706800
(2015-Jun-27.32307671)
9.1519e-05 JED
period 1551.85639693293
4.25
1.4902e-05
4.08e-08
d
yr
n .2319802274949536 2.2277e-09 deg/d
Q 3.023769619188605 1.9358e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1199  
   data-arc span      13351 days (36.55 yr)  
   first obs. used      1978-03-15  
   last obs. used      2014-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54238  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:07:04  

Additional Information
 Earth MOID = 1.23746 AU 
 T_jup = 3.386 
[ 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 13.5 mag n/a MPO231453  

6387 (1989 WC)          Discovered 1989-Nov-19 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1989 WC = 1978 ED9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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