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136231 (2003 WH118)
Classification: Main-belt Asteroid          SPK-ID: 2136231
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .138495473434459 3.8142e-08  
a 2.316085171751622 1.012e-08 au
q 1.995317859375351 9.0067e-08 au
i 7.073389824845911 4.2692e-06 deg
node 34.00524840714418 3.4562e-05 deg
peri 351.0526455504209 3.863e-05 deg
M 282.0575267096142 1.6496e-05 deg
tp 2459279.241670262715
(2021-Mar-05.74167026)
5.938e-05 TDB
period 1287.449538850535
3.52
8.4383e-06
2.31e-08
d
yr
n .2796226097695575 1.8327e-09 deg/d
Q 2.636852484127893 1.1522e-08 au
  Orbit Determination Parameters
   # obs. used (total)      627  
   data-arc span      7675 days (21.01 yr)  
   first obs. used      1999-09-11  
   last obs. used      2020-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55431  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:54:28  

Additional Information
 Earth MOID = .999789 au 
 Jupiter MOID = 2.81066 au 
 T_jup = 3.558 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO266451  

136231 (2003 WH118)          Discovered 2003-Nov-20 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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