:Product: Geomagnetic Data 7day_AK.txt :Issued: 0018 UTC 20 Mar 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 Mar 13 Boulder N49 W 42 16 3 3 4 4 2 3 2 3 Chambon-la-foret N-- E--- 30 3 4 2 2 2 3 4 4 College N65 W102 22 3 5 4 5 2 2 3 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) 17 3 4 3 3 2 3 3 4 Wingst N54 E 95 20 3 4 2 3 2 3 5 4 2021 Mar 14 Boulder N49 W 42 22 4 5 4 4 2 3 2 3 Chambon-la-foret N-- E--- 29 3 4 4 2 2 3 4 4 College N65 W102 37 4 5 5 5 5 5 3 3 Fredericksburg N38 W 78 17 3 4 4 3 3 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) 25 4 5 4 4 3 3 3 4 Wingst N54 E 95 28 4 4 4 3 2 4 5 5 2021 Mar 15 Boulder N49 W 42 8 3 2 2 3 2 2 1 0 Chambon-la-foret N-- E--- 11 2 2 2 1 1 3 2 1 College N65 W102 10 2 1 3 5 1 2 0 0 Fredericksburg N38 W 78 5 3 2 1 2 1 1 0 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) 7 3 2 2 2 1 2 1 1 Wingst N54 E 95 9 2 3 2 2 2 3 2 2 2021 Mar 16 Boulder N49 W 42 2 0 1 0 1 1 1 1 1 Chambon-la-foret N-- E--- 7 1 1 1 1 1 1 1 0 College N65 W102 1 0 0 0 0 0 0 1 1 Fredericksburg N38 W 78 2 0 1 0 1 1 1 0 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) 4 1 2 0 1 1 1 1 1 Wingst N54 E 95 3 1 1 0 1 1 1 2 0 2021 Mar 17 Boulder N49 W 42 3 1 0 1 0 2 2 1 1 Chambon-la-foret N-- E--- 9 2 1 1 0 1 2 1 1 College N65 W102 5 2 1 0 0 1 3 2 1 Fredericksburg N38 W 78 2 1 0 0 0 1 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) 5 2 1 0 0 1 2 1 1 Wingst N54 E 95 5 2 1 1 0 2 2 2 1 2021 Mar 18 Boulder N49 W 42 3 1 1 1 1 1 1 1 1 Chambon-la-foret N-- E--- 11 2 2 1 1 1 0 0 3 College N65 W102 2 1 1 2 1 0 0 0 0 Fredericksburg N38 W 78 4 2 2 1 2 1 1 0 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) 4 2 2 1 2 0 0 0 1 Wingst N54 E 95 6 2 2 2 2 1 0 0 3 2021 Mar 19 Boulder N49 W 42 6 1 3 2 2 1 2 0 1 Chambon-la-foret N-- E--- -1 3 1 -1 -1 -1 -1 -1 -1 College N65 W102 -1 0 2 3 3 2 0 0 -1 Fredericksburg N38 W 78 6 2 2 2 2 1 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 3 2 2 1 0 1 2 Wingst N54 E 95 -1 -1 -1 -1 -1 -1 -1 -1 -1