scenarioGroundLocationImaging¶
Overview¶
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:
python3 scenarioGroundLocationImaging.py
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’ attGuidOutMsg, the
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.
A reset of the Module: groundLocation and Module: simpleInstrumentController for the purposes of switching to a new target after the first one is imaged is also demonstrated.
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.
