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18401 (1992 WE4)
Classification: Main-belt Asteroid          SPK-ID: 2018401
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 .1883806918771291 7.9259e-08  
a 2.529026868701807 1.9116e-08 au
q 2.052607037399911 2.0582e-07 au
i 16.49344076018784 8.2461e-06 deg
node 68.13563952869204 1.9702e-05 deg
peri 304.9177801671704 2.6463e-05 deg
M 352.7230361278379 1.8111e-05 deg
tp 2457630.194520032331
(2016-Aug-29.69452003)
7.4005e-05 JED
period 1469.022988080727
4.02
1.6656e-05
4.56e-08
d
yr
n .245060834936517 2.7785e-09 deg/d
Q 3.005446700003703 2.2717e-08 au
  Orbit Determination Parameters
   # obs. used (total)      910  
   data-arc span      8304 days (22.74 yr)  
   first obs. used      1992-11-17  
   last obs. used      2015-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50611  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:50:13  

Additional Information
 Earth MOID = 1.09899 au 
 Jupiter MOID = 2.53702 au 
 T_jup = 3.370 
[ 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 14.1 mag n/a MPO337414  

18401 (1992 WE4)          Discovered 1992-Nov-21 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 WE4 = 1999 JT127 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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