IAgPlCommonTasks.
  SetPositionSourceCentralBody | Specify the planet using a central body and a desired ephemeris source. | 
  SetPositionSourceFile | Specify a planet ephemeris file, with a .pe extension. | 
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| IAgPlCommonTasks Interface | |
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  SetPositionSourceCentralBody | Specify the planet using a central body and a desired ephemeris source. | 
  SetPositionSourceFile | Specify a planet ephemeris file, with a .pe extension. |