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International Service of Geomagnetic Indices

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Fredericksburg (FRD) observatory

IAGA code FRD
Location Fredericksburg
Country United States of America
Open-Close 1956-
INTERMAGNET member (view)
   
Website http://geomag.usgs.gov/monitoring/observatories/fredericksburg/
   
Altitude 69 m
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Geographic coordinates Geomagnetic coordinates
(IGRF-13 2020.5)		 Corrected geomagnetic coordinates
(IGRF-13 2020.5)
Latitude Longitude   Latitude Longitude   Latitude Longitude
38.205°N 282.627°E 47.37°N 354.53°E 47.13°N 359.97°E
 
FRD contributes to am, Kp, ASY indices K=9 lower limit 515 nT