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442362 (2011 ST241)
Classification: Main-belt Asteroid          SPK-ID: 2442362
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1248649641296665 1.2687e-07  
a 2.703088167707422 8.8396e-08 au
q 2.365567160607309 4.0527e-07 au
i 3.751917012325871 1.485e-05 deg
node 158.3688143344889 0.00015601 deg
peri 235.1228802461411 0.00017447 deg
M 320.3282849286581 9.8546e-05 deg
tp 2459179.382237894762
(2020-Nov-25.88223789)
0.00045108 TDB
period 1623.262456042241
4.44
7.9625e-05
2.18e-07
d
yr
n .2217755968296922 1.0879e-08 deg/d
Q 3.040609174807535 9.9433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      48  
   data-arc span      4717 days (12.91 yr)  
   first obs. used      2002-09-12  
   last obs. used      2015-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52731  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:29:23  

Additional Information
 Earth MOID = 1.37397 au 
 Jupiter MOID = 2.3845 au 
 T_jup = 3.352 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456569.5 (2013-Oct-04.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1280279144942782 1.2831e-07  
q 2.355890229792419 4.0979e-07 au
tp 2455929.177734381083
(2012-Jan-02.67773438)
0.00032786 TDB
node 158.5764858377254 0.00015602 deg
peri 234.2352811904402 0.00017323 deg
i 3.75160085113541 1.484e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      48  
   data-arc span      4717 days (12.91 yr)  
   first obs. used      2002-09-12  
   last obs. used      2015-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52731  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:29:23  

Additional Information
 Jupiter MOID = 2.3845 au 
 T_jup = 3.352 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.64638313753266E-14 -5.220129738950014E-14 -2.298088921058718E-11 -6.060769626732823E-14 -5.245282567258055E-12 -1.350914264867022E-14
q -5.220129738950014E-14 1.679301469535927E-13 7.627320945176146E-11 2.024886806842192E-13 1.76182119683543E-11 4.786273845165753E-14
tp -2.298088921058718E-11 7.627320945176146E-11 1.074938835495099E-7 2.957526906474545E-10 2.475285826382458E-8 2.472769978670368E-11
node -6.060769626732823E-14 2.024886806842192E-13 2.957526906474545E-10 2.434210231077384E-8 -2.422033418345251E-8 -1.073080592034148E-9
peri -5.245282567258055E-12 1.76182119683543E-11 2.475285826382458E-8 -2.422033418345251E-8 3.000981850332069E-8 1.07690898725985E-9
i -1.350914264867022E-14 4.786273845165753E-14 2.472769978670368E-11 -1.073080592034148E-9 1.07690898725985E-9 2.202382581904477E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.5   n/a MPO408997  

442362 (2011 ST241)          Discovered 2004-Jan-17 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 ST241 = 2004 BL8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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