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JPL Small-Body Database Browser
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233945 (2009 WE74)
Classification: Main-belt Asteroid          SPK-ID: 2233945
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .142221221899764 5.1697e-08  
a 2.373931568332848 2.0411e-08 au
q 2.036308119978127 1.2264e-07 au
i 2.060730175120021 6.8063e-06 deg
node 133.8558736751044 0.00018752 deg
peri 343.8644318264651 0.00018996 deg
M 167.9587626153257 2.9629e-05 deg
tp 2457977.194604768123
(2017-Aug-11.69460477)
0.00010722 TDB
period 1335.982349413907
3.66
1.723e-05
4.717e-08
d
yr
n .2694646378808307 3.4753e-09 deg/d
Q 2.711555016687569 2.3314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      5566 days (15.24 yr)  
   first obs. used      2003-01-26  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6802  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:13:17  

Additional Information
 Earth MOID = 1.05289 au 
 Jupiter MOID = 2.3675 au 
 T_jup = 3.528 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.5   n/a MPO440206  

233945 (2009 WE74)          Discovered 2009-Nov-18 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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