:Product: Geomagnetic Data 7day_AK.txt :Issued: 2133 UTC 01 Oct 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 24 Boulder N49 W 42 8 2 2 3 1 2 3 1 1 Chambon-la-foret N-- E--- 14 2 2 2 1 2 3 2 1 College N65 W102 8 2 2 3 1 1 3 2 1 Fredericksburg N38 W 78 6 2 2 2 1 1 3 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) 8 3 2 2 1 1 3 1 1 Wingst N54 E 95 8 2 2 2 2 2 3 2 1 2021 Sep 25 Boulder N49 W 42 6 2 2 2 2 1 2 2 1 Chambon-la-foret N-- E--- -1 2 2 -1 -1 -1 -1 -1 -1 College N65 W102 9 2 2 3 4 1 1 1 1 Fredericksburg N38 W 78 7 2 2 2 2 2 1 2 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) 7 2 3 2 2 1 1 1 2 Wingst N54 E 95 8 2 2 2 2 2 2 2 3 2021 Sep 26 Boulder N49 W 42 2 1 0 0 0 1 1 1 2 Chambon-la-foret N-- E--- 6 -1 -1 1 0 0 0 0 1 College N65 W102 1 0 0 1 0 0 0 0 1 Fredericksburg N38 W 78 2 0 0 0 1 1 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 0 0 1 1 Wingst N54 E 95 2 1 1 0 0 0 0 1 1 2021 Sep 27 Boulder N49 W 42 5 2 2 1 1 1 2 1 2 Chambon-la-foret N-- E--- 11 2 2 1 1 1 2 2 3 College N65 W102 5 2 1 0 3 1 0 1 2 Fredericksburg N38 W 78 6 2 2 1 1 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) 7 3 2 2 1 1 2 1 3 Wingst N54 E 95 8 3 2 1 1 1 2 2 3 2021 Sep 28 Boulder N49 W 42 11 1 2 3 3 2 2 3 3 Chambon-la-foret N-- E--- 17 1 1 2 2 2 2 4 3 College N65 W102 12 1 1 2 5 2 3 2 1 Fredericksburg N38 W 78 9 1 2 2 2 2 2 3 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) 10 2 2 2 3 2 2 3 3 Wingst N54 E 95 13 2 2 2 3 2 2 4 4 2021 Sep 29 Boulder N49 W 42 6 1 0 1 2 2 3 2 2 Chambon-la-foret N-- E--- 9 1 0 1 1 2 1 2 2 College N65 W102 7 0 0 0 3 4 2 1 1 Fredericksburg N38 W 78 4 0 0 1 2 2 1 2 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) 5 1 0 1 2 2 1 2 1 Wingst N54 E 95 5 1 0 1 2 2 2 2 2 2021 Sep 30 Boulder N49 W 42 8 2 1 1 1 2 3 3 2 Chambon-la-foret N-- E--- 20 1 0 0 1 1 3 4 3 College N65 W102 6 2 0 1 1 1 2 3 2 Fredericksburg N38 W 78 6 1 1 1 2 1 2 3 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) 9 2 1 1 1 1 2 4 3 Wingst N54 E 95 11 1 0 0 1 1 3 5 3