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(2011 SR21)
Classification: Jupiter Trojan          SPK-ID: 3578902
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455822.5 (2011-Sep-18.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1108644726725501 0.80443  
a 4.881706197485244 1.5267 au
q 4.340498414158723 5.252 au
i 25.68712889808232 1.7347 deg
node 264.4519007437174 37.458 deg
peri 273.7212424984639 1347.7 deg
M 175.1691522022498 1718.6 deg
tp 2453905.549002253392
(2006-Jun-19.04900225)
19159 TDB
period 3939.63406520338
10.79
1848.1
5.06
d
yr
n .09137904537370158 0.042867 deg/d
Q 5.422913980811765 1.696 au
  Orbit Determination Parameters
   # obs. used (total)      7  
   data-arc span      3 days  
   first obs. used      2011-09-18  
   last obs. used      2011-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      9  
   norm. resid. RMS      .30502  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-18 10:31:28  

Additional Information
 Earth MOID = 3.46746 au 
 Jupiter MOID = .24713 au 
 T_jup = 2.801 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.577   .13315 5 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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