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(2011 UT91)
Classification: Apollo [NEO]          SPK-ID: 3582669
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4098002155982594 0.00019661  
a 1.363117455239706 0.00034204 au
q .8045116281967236 6.6127e-05 au
i 13.56186252164584 0.0059005 deg
node 231.6546613680125 0.00025971 deg
peri 246.8680186469859 0.0016594 deg
M 102.3253224531035 0.75965 deg
tp 2458835.273780228618
(2019-Dec-17.77378023)
1.1644 TDB
period 581.2973533013627
1.59
0.21879
0.000599
d
yr
n .6193043851919359 0.0002331 deg/d
Q 1.921723282282688 0.00048221 au
  Orbit Determination Parameters
   # obs. used (total)      52  
   data-arc span      20 days  
   first obs. used      2011-10-23  
   last obs. used      2011-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .34354  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:52:16  

Additional Information
 Earth MOID = .00718325 au 
 Jupiter MOID = 3.267 au 
 T_jup = 4.725 
[ 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 23.1   n/a MPO215211  

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