Per #201, there should be an option to add non-agent satellites to the environment. They should just execute some default FSW mode and not be included in reward/observations/actions/etc.

On second thought, just treat these as another agent.

TODO

Basic thrusting

• FSW for instantaneous thrust
• Action for setting instantaneous thrust + duration

High fidelity thrusting

• Thruster dynamics model
• FSW for controlling thrusters via absolute thrusts, relative OE control, etc.
• Action for realistic thruster actions

Observations

• Observations that are relative to passive satellite (how to link sats?)
• More relative observations implemented

Scene and data

• Scene/Data for agent surface observations (lit review here)
• FSW/dyn linked to surface observations (sun incidence, etc.)
• Observation of scene (how?)
• Reward model for agent observation amount
• penalty model for use of thrust
• Issue #66: Data manager composition #105 to combine reward types