EOIR Configuration

To select STK objects for possible inclusion in the generated scene and make sensors available to generate radiometric results, follow these steps:

  1. Click the EOIR toolbar to display the sensor's EOIR Configuration.

    2. All central bodies and objects, except for the source sensor, that are part of the EOIR Configuration are listed in the available target list.

    STK automatically adds EOIR pattern sensors and their parent objects to the EOIR configuration. If you copy a parent containing an EOIR sensor, STK will add the copied sensor to the EOIR configuration. If you change a sensor from an EOIR pattern to a non-EOIR pattern or you delete the EOIR pattern sensor, STK will remove the sensor from the EOIR configuration but the parent object will remain. If you delete an object in the EOIR configuration from STK, then STK will automatically delete the object from the EOIR configuration.

    • For a sensor to be available for radiometric calculations and simulated scene images, its platform (e.g., parent aircraft, facility, place, target, missile, ground vehicle, ship, or satellite) must appear in the Selected Targets list.
    • Stars are automatically included from the active STK star collection specified on the scenario's Basic Database properties page.
  2. Use the right and left arrow buttons to move STK objects to and from the Selected Targets list. An EOIR sensor will take images of objects in the Selected Targets list that meet these conditions:
    • They fall within the sensor's field of vew.
    • They are sufficiently bright, either in reflected light or from self-radiance, at wavelengths that the sensor can detect.

    Target aircraft, ships, and ground vehicles appear during the interval between the propagator route start and stop times. Target satellites appear during the interval between orbit start and stop times.

    Objects in the Selected Targets list are shared in common among all the EOIR sensors. Each object has a unique state at any given instance of time, but different EOIR sensors can view the same object from different perspectives (geometries).

  3. If you click Atmosphere and Textures..., the EOIR Atmosphere, Clouds, and Texture Maps dialog box appears. You can then select from the following three tabs:

    Click the tab names above for details about their options.

The following are known EOIR limitations with non-Earth central bodies:

  • EOIR models only the following non-Earth bodies: Earth's moon, Sun, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune.
  • EOIR does not work with the Planetary Data Supplement central bodies.
  • EOIR uses floating point positions and orientations, which can cause pointing issues appearing as jitter when targeting objects over interplanetary distances.
  • EOIR does not consider light time delay (LTD) but instead uses instantaneous light transmission. At interplanetary distances this can cause inconsistencies with both STK access calculations using LTD and illumination conditions.