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JPL Small-Body Database Browser
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392581 (2011 ST169)
Classification: Main-belt Asteroid          SPK-ID: 2392581
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04157898024229397 1.0629e-07  
a 3.082624445600982 5.9627e-08 au
q 2.954452064682926 3.3322e-07 au
i 11.43094630306269 1.7274e-05 deg
node 21.84540392526789 4.578e-05 deg
peri 107.0337029506447 0.00021349 deg
M 112.3288321470872 0.00020228 deg
tp 2458383.666294260335
(2018-Sep-22.16629426)
0.0011156 TDB
period 1976.875658918151
5.41
5.7358e-05
1.57e-07
d
yr
n .1821055352550654 5.2837e-09 deg/d
Q 3.210796826519037 6.2106e-08 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      6757 days (18.50 yr)  
   first obs. used      2000-10-02  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53637  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:31:44  

Additional Information
 Earth MOID = 1.99166 au 
 Jupiter MOID = 1.81104 au 
 T_jup = 3.196 
[ 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 16.0   n/a MPO434455  

392581 (2011 ST169)          Discovered 2011-Sep-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

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