Thanks gang, My Daughter arrived safely home last night. She has signed off for a few weeks break and she knew nothing about going so slow. I'm inclinded to think it was a data error. However at 10 Universal time she is snug in her bed but had there been some unusual activity she would hear about it in the morning.
Over her nearly 9 years at Carnival she has had some doozey of stories about stopping in the middle of night on the ocean for things from Refugee Boat people, to man overboard false alarms, to a lost Luxery Sailboat. Glad this was nothing