ORIGINAL: treespider
...
From the USSBS volume campaigns of the Pacific war -
In accordance with instructions from CinC Combined Fleet, the Task Force sortied from Hitokappu bay at 0600, 26 November and proceeded along the track shown in Appendix 2. On 2 December instructions were received to the effect that negotiations had failed and that 8 December was designated as "X"-day. The refueling was successfully completed on 3 December without mishap. (In the event of failure of the fueling operation it had planned to continue without the destroyers.) After refueling, the Task Force proceeded along the track without incident. No shipping was encountered and the force successfully escaped detection. During the approach, the following instructions were in effect:
1. If discovered prior to "X"-minus-2-day, the Task Force was to return to Japan without executing the attack.
2. If discovered prior to "X"-1-day, the decision as to what action to take was the responsibility of the Task Force Commander.
3. If discovered on "X"-minus-1-day or the morning of "S"-day the Task Force was to continue with the attack.
4. If at any time during the approach to Pearl Harbor the negotiations with the United States had been successful the attack would have been cancelled.
5. If, at any time during the approach to Pearl Harbor the American Fleet attempted to intercept the Japanese Task Force, the Japanese planned to counterattack. If the American Fleet advanced into Japanese home waters in pursuit of the Task Force it was planned to commit the Main Body of the Japanese Fleet as a support force.
6. If, after arriving in Hawaiian waters, it was found that the American Fleet was at sea and not in Pearl Harbor, the Japanese planned to scout a 300-miles radius around Oahu and attack if contact was made; otherwise they were to withdraw..
Nice info. Thanks!