What is the minimum deviation or range correction made while adjusting illumination?

When adjusting illumination in fire support operations, the minimum deviation or range correction that is typically made is 200 meters. This figure is based on operational procedures that ensure effective fire adjustments while minimizing the risk of target overshoot or undershoot.

Illumination fires are utilized primarily to enhance visibility on the battlefield, which requires precise adjustments for safety and effectiveness. A correction of 200 meters allows for adequate separation between these fires and friendly forces or equipment, as well as ensuring that the illumination adequately covers the intended area. It's important to maintain a balance between the need for effective illumination and the safety of all personnel involved in the operation.

The other values provided may represent different types of adjustments or are not standard for illumination. Therefore, the correct choice of 200 meters stems from established practices within fire support operations that prioritize both the efficacy of the illumination and the safety of the forces on the ground.