QUESTION: Status Column Of FK Constraints In Sysobjects - ????

Greetings:

I have to do a one-off forceful change of some data in a database. I
need to disable some FK constraints, make the data change, and then
re-enable the constraints.

My process will be:

ALTER TABLE TABLE1 NOCHECK CONSTRAINT FK_TABLE1_TABLE2
UPDATE TABLE1 SET COLUMN1=2 WHERE COLUMN2='Problem row'
ALTER TABLE TABLE1 CHECK CONSTRAINT FK_TABLE1_TABLE2

I wanted to get some evidence that the constraints were back up after I
did the 'check constraint' statements, so I looked in sysobjects.
There's a status column for the constraints, but I can't make much
sense of the numbers. Most of the FK constraints that I have not
changed are of status 0, but when I NOCHECK a constraint, it goes to
2304. When I CHECK it again, it's 2408.

Can someone explain this, and suggest a way to double-check that my
constraints are in fact enabled once I run the CHECK statement?

Thanks!!