The GPS equipment was installed October 2, 1998 on a chimney of the building
housing the GIS laboratory.
containing a history of GPS equipment at this site is available through the
The data are downloaded daily to NOAA. The raw and RINEX data files are accessible via anonymous ftp from the Geosciences Research Division's Data Center. The observations are dual frequency with a 30 second tracking interval and a 15° observation elevation cutoff.