Looks like this might mean:
1) Clock unlocked for 1000 seconds
2) 3-bits marked reserved for security that should be 0?
3) PMU out of sync, with error and data invalid bits set
Then the high order bits are just a non-protocol specific abstraction of these same bits so analysis can be performed on status words without needing to know underlying protocol.
Are you not hooked to a GPS clock? If you are, is the time locked?