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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1526920369848929 4.6072e-08  
a 2.623224150308094 1.7761e-08 AU
q 2.222678711329586 1.2437e-07 AU
i 1.616156151500484 4.6646e-06 deg
node 280.2810061494721 0.00020306 deg
peri 154.2204786063672 0.00020382 deg
M 313.5290071943248 2.1035e-05 deg
tp 2457200.823075816022
(2015-Jun-27.32307582)
9.1532e-05 JED
period 1551.856393413675
4.25
1.576e-05
4.315e-08
d
yr
n .2319802280210316 2.356e-09 deg/d
Q 3.023769589286602 2.0473e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1162  
   data-arc span      13319 days (36.47 yr)  
   first obs. used      1978-03-15  
   last obs. used      2014-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54514  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:49:50  

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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