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(2011 SM173)
Classification: Apollo [NEO]          SPK-ID: 3580056
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .651587944175817 0.00082078  
a 2.492215102384391 0.0044923 au
q .8683177873778225 0.0004804 au
i .5251231565408196 0.0019225 deg
node 175.7537609701973 0.070094 deg
peri 237.5246780323934 0.061188 deg
M 111.1845128710331 2.4353 deg
tp 2458756.668104714338
(2019-Sep-30.16810471)
8.5212 TDB
period 1437.065992169002
3.93
3.8855
0.01064
d
yr
n .2505104163356078 0.00067733 deg/d
Q 4.11611241739096 0.0074194 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      1 day  
   first obs. used      2011-09-29  
   last obs. used      2011-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .57588  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:52:37  

Additional Information
 Earth MOID = .00136555 au 
 Jupiter MOID = 1.27925 au 
 T_jup = 3.138 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455834.5 (2011-Sep-30.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6489860701806687 0.00073202  
q .8802065958590747 8.589e-05 au
tp 2455868.140618916908
(2011-Nov-02.64061892)
0.0094719 TDB
node 179.4412393808365 0.00092833 deg
peri 233.7617390902965 0.0012179 deg
i .8455417759781201 0.00087421 deg
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      1 day  
   first obs. used      2011-09-29  
   last obs. used      2011-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .57588  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:52:37  

Additional Information
 Jupiter MOID = 1.27925 au 
 T_jup = 3.138 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.358574080902352E-7 -6.287224903304319E-8 -6.933561726759318E-6 -1.870424582587162E-7 6.177927321961314E-7 6.328723375019244E-7
q -6.287224903304319E-8 7.377020304040052E-9 8.134927193498124E-7 2.190155446349775E-8 -7.248292824361135E-8 -7.426135482779656E-8
tp -6.933561726759318E-6 8.134927193498124E-7 8.971745746138563E-5 2.433633838094147E-6 -8.002401564238417E-6 -8.18686015733006E-6
node -1.870424582587162E-7 2.190155446349775E-8 2.433633838094147E-6 8.618002689846122E-7 -9.952249024888148E-7 -1.055101441071681E-7
peri 6.177927321961314E-7 -7.248292824361135E-8 -8.002401564238417E-6 -9.952249024888148E-7 1.483281964121095E-6 6.167372341485909E-7
i 6.328723375019244E-7 -7.426135482779656E-8 -8.18686015733006E-6 -1.055101441071681E-7 6.167372341485909E-7 7.642480293399278E-7

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 27.8   n/a MPO208021  

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