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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03274552451162807 5.1131e-08  
a 2.475187220645668 1.4995e-08 au
q 2.394135916841146 1.3295e-07 au
i 3.20400453932498 4.8777e-06 deg
node 220.0485954407599 9.4057e-05 deg
peri 332.8346641509369 0.00012549 deg
M 27.33173967071846 8.1279e-05 deg
tp 2457292.512053484846
(2015-Sep-27.01205349)
0.00032119 JED
period 1422.363201677367
3.89
1.2925e-05
3.539e-08
d
yr
n .2530999111727992 2.2999e-09 deg/d
Q 2.556238524450189 1.5486e-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 = 1.39216 au 
 Jupiter MOID = 2.40563 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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