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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1526920441940129 4.3624e-08  
a 2.623224153247826 1.6678e-08 AU
q 2.222678694909307 1.1972e-07 AU
i 1.616156511647506 4.2606e-06 deg
node 280.2809978494091 0.00020022 deg
peri 154.2204855111002 0.00020099 deg
M 313.529007163634 2.1034e-05 deg
tp 2457200.823076285061
(2015-Jun-27.32307628)
9.1517e-05 JED
period 1551.85639602232
4.25
1.48e-05
4.052e-08
d
yr
n .2319802276310767 2.2123e-09 deg/d
Q 3.023769611586345 1.9225e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1216  
   data-arc span      13366 days (36.59 yr)  
   first obs. used      1978-03-15  
   last obs. used      2014-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54277  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:01:41  

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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