:Product: Geomagnetic Data 7day_AK.txt :Issued: 2133 UTC 24 Sep 2021 # # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # Please send comments and suggestions to SWPC.Webmaster@noaa.gov # Updated every hour beginning at 0029 UTC. # Values shown as reported, SEC does not verify accuracy. # Missing Data: -1 # # Geomagnetic A and K indices from the U.S. Geological Survey Stations # # Geomagnetic # Dipole A ------------- 3 Hourly K Indices -------------- # Station Lat Long Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24 #------------------------------------------------------------------------------- 2021 Sep 17 Boulder N49 W 42 20 2 3 1 3 3 4 5 4 Chambon-la-foret N-- E--- 39 2 3 2 3 3 4 5 5 College N65 W102 32 2 3 3 6 6 3 3 4 Fredericksburg N38 W 78 19 2 3 1 3 2 2 5 5 Kergulen Island S57 E130 -1 -1 -1 -1 -1 -1 -1 -1 -1 Learmonth S22 E114 -1 -1 -1 -1 -1 -1 -1 -1 -1 Planetary(estimated Ap) 24 2 4 1 4 2 3 5 5 Wingst N54 E 95 26 2 3 1 3 3 4 5 6 2021 Sep 18 Boulder N49 W 42 19 3 5 5 3 3 2 1 1 Chambon-la-foret N-- E--- 8 2 2 2 2 2 0 1 1 College N65 W102 16 2 4 4 5 3 1 0 0 Fredericksburg N38 W 78 14 3 4 4 3 3 1 1 1 Kergulen Island S57 E130 -1 -1 -1 -1 -1 -1 -1 -1 -1 Learmonth S22 E114 -1 -1 -1 -1 -1 -1 -1 -1 -1 Planetary(estimated Ap) 11 3 4 3 3 2 1 0 1 Wingst N54 E 95 7 3 2 2 2 2 1 1 2 2021 Sep 19 Boulder N49 W 42 2 1 0 0 1 2 1 1 0 Chambon-la-foret N-- E--- 6 1 0 0 1 1 0 1 0 College N65 W102 5 1 2 3 3 1 0 0 0 Fredericksburg N38 W 78 2 1 0 0 1 2 1 1 0 Kergulen Island S57 E130 -1 -1 -1 -1 -1 -1 -1 -1 -1 Learmonth S22 E114 -1 -1 -1 -1 -1 -1 -1 -1 -1 Planetary(estimated Ap) 3 1 0 0 1 1 0 1 0 Wingst N54 E 95 2 2 0 0 1 2 0 1 0 2021 Sep 20 Boulder N49 W 42 4 2 0 0 1 2 2 1 1 Chambon-la-foret N-- E--- 8 2 1 1 1 1 0 0 1 College N65 W102 3 1 1 2 2 1 0 0 1 Fredericksburg N38 W 78 4 1 0 0 2 2 2 1 1 Kergulen Island S57 E130 -1 -1 -1 -1 -1 -1 -1 -1 -1 Learmonth S22 E114 -1 -1 -1 -1 -1 -1 -1 -1 -1 Planetary(estimated Ap) 3 1 1 0 1 1 1 0 1 Wingst N54 E 95 4 2 1 0 2 1 0 1 2 2021 Sep 21 Boulder N49 W 42 9 2 0 1 1 2 4 2 3 Chambon-la-foret N-- E--- 19 3 0 1 1 1 3 2 3 College N65 W102 6 1 1 1 1 2 3 2 2 Fredericksburg N38 W 78 6 2 0 1 1 2 2 2 3 Kergulen Island S57 E130 -1 -1 -1 -1 -1 -1 -1 -1 -1 Learmonth S22 E114 -1 -1 -1 -1 -1 -1 -1 -1 -1 Planetary(estimated Ap) 8 3 0 1 1 1 3 2 3 Wingst N54 E 95 10 3 0 1 1 1 3 3 4 2021 Sep 22 Boulder N49 W 42 13 3 2 5 3 2 1 1 1 Chambon-la-foret N-- E--- 16 4 2 3 2 2 1 2 3 College N65 W102 24 3 2 6 5 4 3 0 1 Fredericksburg N38 W 78 11 3 2 4 3 2 2 1 2 Kergulen Island S57 E130 -1 -1 -1 -1 -1 -1 -1 -1 -1 Learmonth S22 E114 -1 -1 -1 -1 -1 -1 -1 -1 -1 Planetary(estimated Ap) 12 4 2 4 3 1 1 1 2 Wingst N54 E 95 14 4 3 3 3 2 1 3 3 2021 Sep 23 Boulder N49 W 42 14 2 2 5 3 3 2 2 1 Chambon-la-foret N-- E--- -1 2 2 -1 -1 -1 -1 -1 -1 College N65 W102 16 1 2 5 5 3 1 1 0 Fredericksburg N38 W 78 10 2 3 4 2 2 2 2 1 Kergulen Island S57 E130 -1 -1 -1 -1 -1 -1 -1 -1 -1 Learmonth S22 E114 -1 -1 -1 -1 -1 -1 -1 -1 -1 Planetary(estimated Ap) 11 3 3 4 2 2 2 2 1 Wingst N54 E 95 -1 -1 -1 -1 -1 -1 -1 -1 -1