After several minutes, DGNSS 1 (the first system that originally failed) comes back online and appears to show a stable, plausible position. Should the DPO immediately return to DP Auto using this single recovered reference?

A. The recovered reference should be ignored entirely since it was the one that failed first

B. No — a single recovered reference with no independent cross-check should be treated with caution before trusting it fully; the DPO should verify it against other available information (radar range to the platform, visual bearing, AIS if available) and ideally wait for a second reference before re-engaging full automatic control

C. Yes, immediately re-engage DP Auto since any valid reference is better than manual control

D. DP Auto should never be re-engaged for the remainder of the operation regardless of reference recovery

A. Immediately switch to manual joystick control regardless of the remaining references' status

B. Ignore the dropout since two references remain — no action is required

C. Restart the DGNSS 1 receiver immediately without checking the current position solution first

D. Confirm the DP system has automatically excluded DGNSS 1 from the position solution and is now running on the two remaining references (DGNSS 2 and Fanbeam); verify the resulting position solution is stable before doing anything else

A. Increase monitoring vigilance specifically — with only two references, there is no longer a "voting" majority if one of the remaining two starts to disagree, so any divergence between DGNSS 2 and Fanbeam now requires immediate judgement rather than automatic resolution; the DPO should also consider what reference would be left if either of these also fails

B. Nothing changes — two references is operationally identical to three for monitoring purposes

C. Immediately suspend operations regardless of how the two remaining references agree

D. Disable the alarm system since fewer references means fewer expected alarms