When you registered on the GOES website you were sent an email from:
GOES SYSTEM SUPPORT <[email protected]>
On my email the subject was:
PROD-GOES - User Enrollment
If you no longer have that email, you can go to the GOES website and click on the recover userid link:
https://goes-app.cbp.dhs.gov/main/goes
You will have to know a lot of the personal information as specified when you registered. They system will send you the userid/password.
You will find your PASSID after you log back in.