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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1532509474126173 3.26e-08  
a 2.62466606298396 1.259e-08 au
q 2.222433502189924 8.5199e-08 au
i 1.614793535879674 3.889e-06 deg
node 280.1975798088569 0.00017474 deg
peri 154.4998211146792 0.00017569 deg
M 92.46785206360929 1.9088e-05 deg
tp 2457201.569005739435
(2015-Jun-28.06900574)
8.1664e-05 JED
period 1553.136087069586
4.25
1.1175e-05
3.06e-08
d
yr
n .2317890898274329 1.6677e-09 deg/d
Q 3.026898623777996 1.4519e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1657  
   data-arc span      13909 days (38.08 yr)  
   first obs. used      1978-03-15  
   last obs. used      2016-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5062  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:55:36  

Additional Information
 Earth MOID = 1.23596 au 
 Jupiter MOID = 2.23419 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 13.6 mag n/a MPO347576  

6387 (1989 WC)          Discovered 1989-Nov-19 by Ueda, S., Kaneda, H. at Kushiro
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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