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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1528373509233083 4.0566e-08  
a 2.62373684205874 1.5101e-08 au
q 2.222731853598595 1.1053e-07 au
i 1.615802054799475 4.1025e-06 deg
node 280.2737234909206 0.00019327 deg
peri 154.338990104348 0.00019412 deg
M 46.22411104243408 2.0564e-05 deg
tp 2457201.182741832894
(2015-Jun-27.68274183)
8.799e-05 JED
period 1552.311365691541
4.25
1.3402e-05
3.669e-08
d
yr
n .2319122361380271 2.0022e-09 deg/d
Q 3.024741830518884 1.7409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1456  
   data-arc span      13794 days (37.77 yr)  
   first obs. used      1978-03-15  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52382  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:59:56  

Additional Information
 Earth MOID = 1.23719 au 
 Jupiter MOID = 2.23793 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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