APL Applied Physics Lab Laurel, MD
CLK Clarkson University Potsdam, NY
DSO Darksky Observatory Boone, NC
FIT Bullcreek Observatory Holopaw, FL
FRD USGS Fredricksburg, VA
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GTF Grafton Test Facility Canaan, NM
JAX Jacksonville University Jacksonville, FL
MSH Millstone Hill Westford, MA
OTT Ottawa, Canada
USC U of South Carolina Aiken, SC
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