As of version 2.21, the standard SGV cradle uses a correction pam-file called SGVNEWS.CAR. This file will be kept up-to-date on the SGV AFS area. It can also be down-loaded form this page. If down-loaded, it should be placed on the SGV_PAM area.
To use it, simply switch it on by un-commenting the line
Presently, there are no corrections.