National Geodetic Survey, NOS, NOAA, N/NGS6, also CIRES and Geological Sciences, Campus Box 216 University of Colorado, Boulder, CO 80309-0216 United States
Geological Survey of Canada--Pacific, P.O. Box 6000, 9860 West Saanich Road, Sidney, BC V8L 4B2 Canada
National Geodetic Survey, NOS/NOAA, N/NGS6, Table Mountain Gravity Observatory 8600 North 39th Street, Longmont, CO 80503 United States