Kp Sites List

The sites listed here are those used in the creation of the Kp index, and hence also in the derived ap index. The observatories are listed in the order of their geomagnetic latitude (beginning with the highest one).


Observatory Geographic Geomagnetic K=9
# Code Name Location Active Lat. Long. Lat.* Long.*
1 LER Lerwick Scotland 1932-actual 60°08' 358°49' 62.0° 89.4° 1000 nT
2 MEA Meanook Canada 1932-actual 54°37' 246°40' 61.8° 305.1° 1500 nT
3 SIT Sitka Alaska (US) 1932-actual 57°03' 224°40' 60.4° 279.2° 1000 nT
4 ESK Eskdalemuir Scotland 1932-actual 55°19' 356°48' 57.9° 84.1° 750 nT
5 LOV Lovö Schweden 1954-actual 59°21' 17°50' 57.8° 106.7° 600 nT
6 AGN Agincourt Canada 1932-1969 43°47' 280°44' 54.4° 350.2° 600 nT
OTT Ottawa Canada 1969-actual 45°24' 284°27' 56.1° 354.8° 750 nT
7 RSV Rude Skov Denmark 1932-1984 55°51' 12°27' 55.5° 99.6° 600 nT
BFE Brorfelde Denmark 1984-actual 55°37' 11°40' 55.4° 98.8° 600 nT
8 ABN Abinger England 1932-1957 51°11' 359°37' 53.5° 84.6° 500 nT
HAD Hartland England 1957-actual 50°58' 355°31' 54.0° 80.4° 500 nT
9 WNG Wingst Germany 1938-actual 53°45' 9°04' 54.2° 95.3° 500 nT
10 WIT Witteveen Netherland 1932-1988 52°49' 6°40' 53.7° 92.4° 500 nT
NGK Niemegk Germany 1988-actual 52°04' 12°41' 51.9° 97.8° 500 nT
11 CLH Cheltenham USA 1932-1957 38°42' 283°12' 49.4° 353.5° 500 nT
FRD Fredericksburg USA 1957-actual 38°12' 282°38' 48.8° 352.9° 500 nT
12 TOO Toolangi Australia 1972-1981 -37°32' 145°28' -45.8° 223.0° 500 nT
CNB Canberra Australia 1981-actual -35°18' 149°00' -43.1° 226.4° 500 nT
13 AML Amberley New Zealand 1932-1978 -43°09' 172°43' -47.0° 254.2° 500 nT
EYR Eyrewell New Zealand 1978-actual -43°25' 172°21' -47.3° 253.9° 500 nT

*)After the IGRF Model 'IGRF 1995', J. Geomag. Geoelectr. Vol.47 (1995) pp. 1257-1261


Last modified: Jul 05 2000