This scenario demonstrates imaging a target on the surface of the Earth based on access and attitude error requirements. Simulated data generated from this image is stored in an on-board storage device and then downlinked to a ground station.
The script is found in the folder
basilisk/examples and executed by using:
The simulation uses Module: groundLocation to create an output message with the desired ground target’s inertial
position. This is fed to the 2D pointing module Module: locationPointing which directs the 3rd body axis to point
towards the target. Once the target is accessible per the Module: groundLocation class’
accessOutMsg and below the
prescribed attitude error from the Module: locationPointing class’
Module: simpleInstrumentController sends a
deviceStatusOutMsg to the Module: simpleInstrument to turn the imager on
for a single time step. The Module: simpleInstrument sends this data to a Module: partitionedStorageUnit. The data is
then downlinked using a Module: spaceToGroundTransmitter once a ground station represented by another
Module: groundLocation class is accessible.
Illustration of Simulation Results¶
show_plots = True
The following plots illustrate the 2D pointing error, access data, image commands, and level of the storage unit.
- scenarioGroundLocationImaging.plot_attitude_error(timeLineSet, dataSigmaBR)¶
Plot the attitude result.
The scenarios can be run with the followings setups parameters:
show_plots (bool) – Determines if the script should display plots