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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6516086911636023 0.00081914  
a 2.492328434207062 0.0044813 au
q .8683055652435679 0.00048031 au
i .5251800234809546 0.0019231 deg
node 175.7556682936286 0.070183 deg
peri 237.5230154397654 0.061205 deg
M 111.1230367418454 2.4323 deg
tp 2458756.883250154697
(2019-Sep-30.38325015)
8.5136 TDB
period 1437.164017712364
3.93
3.8761
0.01061
d
yr
n .2504933296152499 0.0006756 deg/d
Q 4.116351303170556 0.0074014 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .5728  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:24:07  

Additional Information
 Earth MOID = .00136513 au 
 Jupiter MOID = 1.27902 au 
 T_jup = 3.138 
[ show covariance matrix ]

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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