This site provides authorized users access to the GPS Modernized Navigation Database and the GPS State of Health Database. Data on this site is CUI. Any data obtained from this site should be protected in accordance with DoD policies for protection of CUI data.
If you have an account, please log in with your username and password to continue.
If you don't have an account, you can request an account.
For assistance, please contact the website administrator at modnavdb-user-admin-list@mitre.org.