If a booster is not intended for reuse, when might it still be commanded to de-orbit quickly rather than coasting?

Answer

If it is targeting a high-energy transfer orbit that makes recovery too costly in fuel.

If the mission profile dictates a trajectory that burns too much fuel for the booster to carry the necessary recovery propellant (such as a high-energy transfer orbit), the stage is typically commanded to de-orbit quickly over remote areas to avoid creating long-term debris.

If a booster is not intended for reuse, when might it still be commanded to de-orbit quickly rather than coasting?

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