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181192 (2005 SM123)
Classification: Main-belt Asteroid          SPK-ID: 2181192
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05362126769075282 4.3447e-08  
a 2.768944947042784 1.7413e-08 au
q 2.620470608816445 1.1777e-07 au
i 4.806411388074779 5.0615e-06 deg
node 336.2906127577928 5.1366e-05 deg
peri 325.0918850709004 7.5773e-05 deg
M 212.6585520172673 5.9427e-05 deg
tp 2460085.298735588530
(2023-May-20.79873559)
0.00028081 TDB
period 1682.944943237769
4.61
1.5875e-05
4.346e-08
d
yr
n .2139107410771302 2.0179e-09 deg/d
Q 2.917419285269123 1.8347e-08 au
  Orbit Determination Parameters
   # obs. used (total)      402  
   data-arc span      9878 days (27.04 yr)  
   first obs. used      1994-04-02  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:37:57  

Additional Information
 Earth MOID = 1.60644 au 
 Jupiter MOID = 2.2198 au 
 T_jup = 3.331 
[ 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 16.05   n/a MPCxxxxx  

181192 (2005 SM123)          Discovered 2005-Sep-29 by LONEOS at Anderson Mesa
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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