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441558 (2008 TW157)
Classification: Main-belt Asteroid          SPK-ID: 2441558
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2357895869022695 8.1265e-08  
a 2.389248519724168 3.5658e-08 au
q 1.825888598251548 1.7728e-07 au
i 13.68236989569751 7.2524e-06 deg
node 257.0501586801533 3.1419e-05 deg
peri 60.4843132093173 4.2402e-05 deg
M 91.34641186237231 1.7566e-05 deg
tp 2458658.221667757500
(2019-Jun-23.72166776)
6.779e-05 TDB
period 1348.933111822176
3.69
3.0198e-05
8.268e-08
d
yr
n .2668775766899977 5.9745e-09 deg/d
Q 2.952608441196789 4.4066e-08 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      4053 days (11.10 yr)  
   first obs. used      2008-09-23  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52007  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:57:33  

Additional Information
 Earth MOID = .853617 au 
 Jupiter MOID = 2.4192 au 
 T_jup = 3.457 
[ 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 17.3   n/a MPO495187  

441558 (2008 TW157)          Discovered 2008-Sep-23 by CSS at Catalina
Reference: Last Updated: 2015-09-02

Alternate Designations
 2008 TW157 = 2012 WC26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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