Function zenithHold

tracker/src/pointing/planner.ts:106–113

(
  plan: PassPlan | null,
  currentElDeg: number,
)

 * top of the frame. Returns null when normal continuous tracking should run.
 */
export function zenithHold(
  plan: PassPlan | null,
  currentElDeg: number,
): { azDeg: number; elDeg: number } | null {
  if (!plan?.zenithPass) return null;
  if (currentElDeg < ZENITH_REGIME_EL) return null;
  return { azDeg: plan.outboundAzDeg, elDeg: ZENITH_HOLD_TILT };
}