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109893 (2001 ST12)
Classification: Main-belt Asteroid          SPK-ID: 2109893
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .278915148416389 2.7248e-08  
a 2.659433936975932 1.0239e-08 au
q 1.917677525740708 7.0296e-08 au
i 2.400024706591735 5.5915e-06 deg
node 172.1056459931036 8.0072e-05 deg
peri 254.4853207624345 8.125e-05 deg
M 68.51631402477771 1.0927e-05 deg
tp 2458699.009434079870
(2019-Aug-03.50943408)
4.7652e-05 TDB
period 1584.098696435954
4.34
9.1487e-06
2.505e-08
d
yr
n .2272585671650132 1.3125e-09 deg/d
Q 3.401190348211156 1.3095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      539  
   data-arc span      9566 days (26.19 yr)  
   first obs. used      1994-02-11  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5943  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:09:51  

Additional Information
 Earth MOID = .933157 au 
 Jupiter MOID = 1.93162 au 
 T_jup = 3.328 
[ 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 16.3   n/a MPO453560  

109893 (2001 ST12)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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