:Product: Geomagnetic Data 7day_AK.txt :Issued: 0018 UTC 01 May 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 24 Boulder N49 W 42 11 3 3 3 3 1 2 2 2 Chambon-la-foret N-- E--- 23 2 2 2 1 1 1 2 3 College N65 W102 20 3 3 4 6 3 1 0 2 Fredericksburg N38 W 78 10 3 3 3 2 2 0 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) 10 3 3 2 2 2 1 2 3 Wingst N54 E 95 8 3 2 1 2 2 2 2 3 2021 Apr 25 Boulder N49 W 42 18 5 3 3 4 2 3 2 2 Chambon-la-foret N-- E--- 21 5 3 2 2 2 2 3 2 College N65 W102 40 5 5 4 6 6 3 3 2 Fredericksburg N38 W 78 16 5 3 3 3 3 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) 20 5 4 3 3 3 2 3 2 Wingst N54 E 95 18 5 4 2 2 3 2 4 2 2021 Apr 26 Boulder N49 W 42 15 4 4 4 2 2 3 1 2 Chambon-la-foret N-- E--- 14 4 3 2 1 2 1 0 2 College N65 W102 18 3 5 4 3 4 1 1 1 Fredericksburg N38 W 78 12 4 4 3 1 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) 14 4 5 3 1 2 1 1 2 Wingst N54 E 95 15 5 4 3 2 2 2 1 2 2021 Apr 27 Boulder N49 W 42 9 3 3 2 2 2 3 1 1 Chambon-la-foret N-- E--- 6 3 3 1 1 1 1 0 1 College N65 W102 15 1 3 5 4 3 2 0 1 Fredericksburg N38 W 78 8 3 3 2 2 2 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) 8 3 3 2 2 1 1 0 1 Wingst N54 E 95 7 3 3 1 2 1 2 1 1 2021 Apr 28 Boulder N49 W 42 4 2 0 1 1 1 2 2 0 Chambon-la-foret N-- E--- 6 2 0 0 1 1 1 0 1 College N65 W102 2 1 1 0 1 1 0 0 0 Fredericksburg N38 W 78 4 2 0 0 2 2 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) 3 2 1 1 1 1 0 0 1 Wingst N54 E 95 2 2 0 0 1 0 1 1 1 2021 Apr 29 Boulder N49 W 42 5 2 2 1 1 1 2 2 1 Chambon-la-foret N-- E--- 8 1 1 1 1 1 1 2 0 College N65 W102 4 0 0 2 3 2 0 0 0 Fredericksburg N38 W 78 5 2 2 1 1 2 1 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) 6 2 2 2 2 2 1 2 1 Wingst N54 E 95 5 1 2 1 1 2 2 2 1 2021 Apr 30 Boulder N49 W 42 6 1 2 0 1 2 3 2 2 Chambon-la-foret N-- E--- -1 1 2 -1 -1 -1 -1 -1 -1 College N65 W102 1 0 0 0 0 0 1 1 1 Fredericksburg N38 W 78 6 1 1 1 1 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) 6 1 2 1 1 1 2 2 2 Wingst N54 E 95 -1 -1 -1 -1 -1 -1 -1 -1 -1