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359318 (2009 JS12)
Classification: Main-belt Asteroid          SPK-ID: 2359318
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1929044489062309 1.0516e-07  
a 2.53571547210888 2.241e-08 au
q 2.046564676378714 2.7109e-07 au
i 6.343089358129263 1.1011e-05 deg
node 85.04536466241508 9.776e-05 deg
peri 181.1461432396743 0.00010178 deg
M 243.7681464454953 3.3834e-05 deg
tp 2459476.680789276892
(2021-Sep-19.18078928)
0.00014156 TDB
period 1474.854602222227
4.04
1.9552e-05
5.353e-08
d
yr
n .2440918579076016 3.2359e-09 deg/d
Q 3.024866267839047 2.6733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      5347 days (14.64 yr)  
   first obs. used      2005-05-15  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55251  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 08:46:27  

Additional Information
 Earth MOID = 1.03068 au 
 Jupiter MOID = 2.0647 au 
 T_jup = 3.414 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457052.5 (2015-Jan-30.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1938336606525671 1.0444e-07  
q 2.043189294748313 2.6918e-07 au
tp 2456527.781326878600
(2013-Aug-23.28132688)
0.00012633 TDB
node 85.10147420961519 9.7763e-05 deg
peri 181.1352259451768 0.00010173 deg
i 6.343887621189373 1.1009e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      5347 days (14.64 yr)  
   first obs. used      2005-05-15  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55251  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 08:46:27  

Additional Information
 Jupiter MOID = 2.0647 au 
 T_jup = 3.414 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.090808128106053E-14 -2.805428513031174E-14 -1.127844576530058E-11 -4.804002610777813E-13 -2.52094309521925E-12 1.203069285998941E-14
q -2.805428513031174E-14 7.24597292444566E-14 2.911389816026395E-11 1.240153147589188E-12 6.542566644829104E-12 -3.020022368119394E-14
tp -1.127844576530058E-11 2.911389816026395E-11 1.595817539636292E-8 5.645758236039598E-10 3.789349475458548E-9 -1.404231499138649E-11
node -4.804002610777813E-13 1.240153147589188E-12 5.645758236039598E-10 9.557640782480669E-9 -9.347106566780112E-9 -8.867773108379202E-10
peri -2.52094309521925E-12 6.542566644829104E-12 3.789349475458548E-9 -9.347106566780112E-9 1.034995559136604E-8 8.777731650778514E-10
i 1.203069285998941E-14 -3.020022368119394E-14 -1.404231499138649E-11 -8.867773108379202E-10 8.777731650778514E-10 1.212005795109293E-10

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 16.9   n/a MPO460414  

359318 (2009 JS12)          Discovered 2009-May-14 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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