The International GNSS Service (IGS) – is a voluntary federation of over 200 agencies, universities, and research institutions in more than 100 countries, that work together to provide high precision GPS satellite orbits for multiple research and educational applications.
To view data and information about the NIST IGS station, please see the IGS NIST page.
Information about the NISA IGS station located on the NIST campus can be found here.
Information about the NISU IGS station located on the NIST campus can be found here.