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6988 (1994 WE3)
Classification: Main-belt Asteroid          SPK-ID: 2006988
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03266458093312864 5.1156e-08  
a 2.475150671013394 1.4868e-08 au
q 2.394300911598389 1.329e-07 au
i 3.204058693924468 4.8777e-06 deg
node 220.0480916165271 9.4056e-05 deg
peri 332.9216231754884 0.00012561 deg
M 77.87629771110934 8.144e-05 deg
tp 2457292.816870336005
(2015-Sep-27.31687034)
0.00032193 JED
period 1422.331696993823
3.89
1.2816e-05
3.509e-08
d
yr
n .2531055173423189 2.2806e-09 deg/d
Q 2.556000430428399 1.5354e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1361  
   data-arc span      13376 days (36.62 yr)  
   first obs. used      1978-10-27  
   last obs. used      2015-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49268  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:55:43  

Additional Information
 Earth MOID = 1.39217 au 
 Jupiter MOID = 2.40619 au 
 T_jup = 3.479 
[ 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 MPO337314  

6988 (1994 WE3)          Discovered 1994-Nov-28 by Ueda, S., Kaneda, H. at Kushiro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1994 WE3 = 1978 UK4 = 1988 JN1 = 1989 PT1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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