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441557 (2008 TO138)
Classification: Main-belt Asteroid          SPK-ID: 2441557
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09487716224315745 5.4323e-08  
a 2.483995963375728 3.2617e-08 au
q 2.248321475347181 1.3238e-07 au
i 8.362581437736115 6.0982e-06 deg
node 231.4467368581002 5.143e-05 deg
peri 4.540837366452092 6.7719e-05 deg
M 136.3588194609499 4.4086e-05 deg
tp 2458458.866537706644
(2018-Dec-06.36653771)
0.00017777 TDB
period 1429.962852395099
3.92
2.8165e-05
7.711e-08
d
yr
n .2517547916696034 4.9586e-09 deg/d
Q 2.719670451404276 3.5711e-08 au
  Orbit Determination Parameters
   # obs. used (total)      108  
   data-arc span      8330 days (22.81 yr)  
   first obs. used      1996-10-08  
   last obs. used      2019-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68298  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:11  

Additional Information
 Earth MOID = 1.2369 au 
 Jupiter MOID = 2.27768 au 
 T_jup = 3.456 
[ 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 16.7   n/a MPO434638  

441557 (2008 TO138)          Discovered 2008-Sep-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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