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181167 (2005 SF31)
Classification: Main-belt Asteroid          SPK-ID: 2181167
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1526374196898809 4.4393e-08  
a 2.77259047014753 1.6653e-08 au
q 2.349389414927458 1.2372e-07 au
i 7.770056687910793 6.2667e-06 deg
node 205.6223290251985 3.1822e-05 deg
peri 115.2335775716498 3.7446e-05 deg
M 134.7237457653607 1.8894e-05 deg
tp 2458569.442889594696
(2019-Mar-26.94288959)
8.701e-05 TDB
period 1686.269621255741
4.62
1.5192e-05
4.159e-08
d
yr
n .2134889910024668 1.9234e-09 deg/d
Q 3.195791525367603 1.9195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      446  
   data-arc span      8857 days (24.25 yr)  
   first obs. used      1996-10-11  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52061  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:29  

Additional Information
 Earth MOID = 1.3482 au 
 Jupiter MOID = 2.17812 au 
 T_jup = 3.306 
[ 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 15.79   n/a MPCxxxxx  

181167 (2005 SF31)          Discovered 2005-Sep-23 by LONEOS at Anderson Mesa
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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