:Product: Geomagnetic Data 7day_AK.txt :Issued: 2133 UTC 19 Apr 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 Apr 12 Boulder N49 W 42 6 1 0 2 3 1 3 1 1 Chambon-la-foret N-- E--- 9 1 1 1 2 2 2 1 1 College N65 W102 5 1 1 2 3 1 1 1 0 Fredericksburg N38 W 78 4 1 0 1 2 2 2 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) 5 1 1 1 2 1 2 1 0 Wingst N54 E 95 6 1 1 1 2 1 3 2 1 2021 Apr 13 Boulder N49 W 42 7 0 2 1 2 2 3 2 2 Chambon-la-foret N-- E--- 10 0 1 1 1 2 2 2 2 College N65 W102 6 0 1 1 4 2 1 1 1 Fredericksburg N38 W 78 5 0 1 1 2 2 2 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 0 2 1 2 2 2 1 2 Wingst N54 E 95 6 0 1 1 2 2 3 2 2 2021 Apr 14 Boulder N49 W 42 8 1 2 1 1 2 3 2 3 Chambon-la-foret N-- E--- 20 1 1 1 2 1 2 2 4 College N65 W102 2 1 1 0 1 1 0 1 1 Fredericksburg N38 W 78 7 1 1 1 2 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) 7 1 1 1 2 1 1 2 4 Wingst N54 E 95 8 1 1 0 2 1 2 3 4 2021 Apr 15 Boulder N49 W 42 15 2 3 5 2 3 3 1 2 Chambon-la-foret N-- E--- 19 3 3 4 2 3 2 1 2 College N65 W102 10 2 3 5 0 1 1 0 1 Fredericksburg N38 W 78 11 3 3 4 1 3 1 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) 13 3 3 5 1 2 2 1 2 Wingst N54 E 95 14 3 3 4 2 3 3 2 2 2021 Apr 16 Boulder N49 W 42 16 2 3 3 2 3 4 4 3 Chambon-la-foret N-- E--- 38 2 2 2 2 2 3 4 4 College N65 W102 31 2 2 4 4 6 4 5 4 Fredericksburg N38 W 78 15 2 3 3 2 3 3 4 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) 19 2 3 3 3 3 3 5 4 Wingst N54 E 95 20 2 2 2 3 3 3 5 5 2021 Apr 17 Boulder N49 W 42 25 4 4 5 3 4 4 3 3 Chambon-la-foret N-- E--- 31 5 4 3 3 4 4 3 3 College N65 W102 57 5 4 6 7 6 5 3 3 Fredericksburg N38 W 78 20 3 4 5 3 3 2 2 4 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) 29 5 5 5 4 4 3 3 4 Wingst N54 E 95 31 5 4 4 3 4 5 4 4 2021 Apr 18 Boulder N49 W 42 18 3 4 4 4 2 2 3 3 Chambon-la-foret N-- E--- 25 3 2 2 3 2 2 3 4 College N65 W102 36 3 3 5 7 5 2 2 2 Fredericksburg N38 W 78 13 3 3 3 3 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) 16 4 4 3 3 2 2 3 4 Wingst N54 E 95 20 4 3 3 3 3 3 4 4