The NIST Time and Frequency Division has two stations in the IGS Tracking Network: NIST and NISU.

The International GNSS Service (IGS) compiles satellite data from over 200 sites worldwide for multiple research and educational applications.

The station NISU has been in the IGS since 2004. The station NIST was enterred in the IGS in 2008.
For more information on station NISU in the IGS, see the IGS NISU page.
For more information on station NIST in the IGS, see the IGS NIST page.

For pictures of the NISU NIST antennas and locations, see:
NISU pictures
NIST pictures

For information, contact Marc Weiss: mweiss@boulder.nist.gov