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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1526920418011869 5.0276e-08  
a 2.623224152430905 1.9616e-08 AU
q 2.222678700494042 1.3252e-07 AU
i 1.616154684029352 5.0202e-06 deg
node 280.2810441365998 0.00020855 deg
peri 154.22043980399 0.00020929 deg
M 313.5290070527409 2.1036e-05 deg
tp 2457200.823076669513
(2015-Jun-27.32307667)
9.1546e-05 JED
period 1551.856395297405
4.25
1.7407e-05
4.766e-08
d
yr
n .231980227739441 2.6021e-09 deg/d
Q 3.023769604367768 2.2611e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1139  
   data-arc span      13293 days (36.39 yr)  
   first obs. used      1978-03-15  
   last obs. used      2014-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54852  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:08:14  

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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