After February 16, 2023, the long name GNSS products archived at the CDDIS will follow the Guidelines for Long Product Filenames in the IGS version 2.0. These guidelines are available at For more information, please see IGSMail message 8309 sent February 3, 2023.

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CDDIS Archive Access: .netrc instructions

In order for cURL to use those credentials you will need to create a .netrc file.

To create a .netrc file, you will need to create a text file with the name .netrc; this file needs to have read permissions set to only yourself, so that no one can read your file and get your username and password. The format of the file is:

machine login <username> password <password>

where <username> and <password> are the values you set when you created your Earthdata login account.