:Product: Geomagnetic Data 7day_AK.txt :Issued: 0018 UTC 21 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 May 14 Boulder N49 W 42 4 1 1 1 0 0 2 1 3 Chambon-la-foret N-- E--- 11 1 1 1 0 0 1 2 2 College N65 W102 3 1 1 1 1 0 1 1 2 Fredericksburg N38 W 78 4 0 1 1 1 1 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) 4 0 1 1 1 1 1 2 2 Wingst N54 E 95 5 1 1 1 0 1 2 2 3 2021 May 15 Boulder N49 W 42 8 3 2 3 2 2 2 1 1 Chambon-la-foret N-- E--- 8 3 2 2 1 1 1 1 2 College N65 W102 -1 3 1 4 3 -1 -1 -1 -1 Fredericksburg N38 W 78 8 3 2 3 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) 8 3 1 3 2 1 1 1 1 Wingst N54 E 95 9 4 2 2 2 2 2 1 2 2021 May 16 Boulder N49 W 42 5 1 0 1 2 2 2 2 1 Chambon-la-foret N-- E--- 8 1 0 0 1 1 1 2 1 College N65 W102 6 -1 0 0 4 3 0 1 0 Fredericksburg N38 W 78 4 1 0 1 2 2 1 2 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 0 1 2 2 1 2 1 Wingst N54 E 95 4 1 0 1 2 2 1 2 1 2021 May 17 Boulder N49 W 42 9 2 2 3 1 2 3 2 2 Chambon-la-foret N-- E--- 18 1 2 2 1 2 3 2 2 College N65 W102 4 1 1 3 1 0 1 1 1 Fredericksburg N38 W 78 6 1 1 2 1 2 1 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) 6 1 1 2 1 1 2 2 2 Wingst N54 E 95 8 1 2 1 2 2 3 3 2 2021 May 18 Boulder N49 W 42 14 3 4 4 3 2 1 2 2 Chambon-la-foret N-- E--- 10 3 3 2 2 2 1 1 0 College N65 W102 19 3 4 5 4 3 3 1 0 Fredericksburg N38 W 78 10 3 3 4 2 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) 10 3 4 3 2 2 1 1 1 Wingst N54 E 95 12 3 4 2 3 3 2 2 1 2021 May 19 Boulder N49 W 42 5 2 1 2 1 1 2 1 2 Chambon-la-foret N-- E--- 14 2 1 1 1 2 1 2 3 College N65 W102 3 2 1 1 0 1 0 1 1 Fredericksburg N38 W 78 5 2 1 2 1 2 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) 6 2 1 1 1 1 1 1 3 Wingst N54 E 95 7 2 1 2 1 2 2 2 3 2021 May 20 Boulder N49 W 42 17 3 2 3 4 4 3 3 3 Chambon-la-foret N-- E--- -1 3 2 -1 -1 -1 -1 -1 -1 College N65 W102 33 2 3 4 6 6 4 3 3 Fredericksburg N38 W 78 17 3 2 3 3 4 3 3 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) 24 3 2 3 4 5 4 4 4 Wingst N54 E 95 -1 -1 -1 -1 -1 -1 -1 -1 -1