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JPL Small-Body Database Browser
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(2011 SM173)
Classification: Apollo [NEO]          SPK-ID: 3580056
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6515204761128572 0.00083112  
a 2.493280181838385 0.0046075 au
q .8688570906842892 0.00046661 au
i .5249717616753105 0.0019188 deg
node 175.7489485016516 0.070717 deg
peri 237.5458115290823 0.064137 deg
M 320.9036334697328 2.0245 deg
tp 2458756.666886254110
(2019-Sep-30.16688625)		 8.5196 TDB
period 1437.987312911949
3.94		 3.986
0.01091		 d
yr
n .2503499139161345 0.00069395 deg/d
Q 4.117703272992481 0.0076093 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 = .00145264 au 
 Jupiter MOID = 1.27492 au 
 T_jup = 3.137 
[ 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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