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JPL Small-Body Database Browser
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172620 (2003 WD140)
Classification: Main-belt Asteroid          SPK-ID: 2172620
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1612435254509534 6.479e-08  
a 2.615195724246179 2.5423e-08 au
q 2.193512345924466 1.7815e-07 au
i 2.00090826577633 6.8692e-06 deg
node 34.68431222287353 0.000165 deg
peri 298.1169128121352 0.00016595 deg
M 39.85241143738894 1.9856e-05 deg
tp 2458829.495780087352
(2019-Dec-11.99578009)
8.4231e-05 TDB
period 1544.737619335056
4.23
2.2525e-05
6.167e-08
d
yr
n .2330492864898084 3.3983e-09 deg/d
Q 3.036879102567893 2.9522e-08 au
  Orbit Determination Parameters
   # obs. used (total)      341  
   data-arc span      6269 days (17.16 yr)  
   first obs. used      2001-02-20  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55862  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:52:50  

Additional Information
 Earth MOID = 1.18408 au 
 Jupiter MOID = 2.32067 au 
 T_jup = 3.388 
[ 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 16.2   n/a MPO436858  

172620 (2003 WD140)          Discovered 2003-Nov-21 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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