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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1527492469035583 5.9059e-08  
a 2.623668958327273 2.1274e-08 AU
q 2.222905500818539 1.5414e-07 AU
i 1.616188934075396 5.6742e-06 deg
node 280.286251944543 0.0002293 deg
peri 154.1596731405015 0.00023008 deg
M 267.1980770867886 2.2587e-05 deg
tp 2457200.644135975167
(2015-Jun-27.14413598)
9.9023e-05 JED
period 1552.251121841277
4.25
1.888e-05
5.169e-08
d
yr
n .2319212367989587 2.8208e-09 deg/d
Q 3.024432415836008 2.4523e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1119  
   data-arc span      12484 days (34.18 yr)  
   first obs. used      1978-03-15  
   last obs. used      2012-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56262  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 15:26:36  

Additional Information
 Earth MOID = 1.23718 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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