:Product: Geomagnetic Data 7day_AK.txt :Issued: 2133 UTC 22 Feb 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 Feb 15 Boulder N49 W 42 4 0 0 2 1 1 2 2 2 Chambon-la-foret N-- E--- 17 0 0 0 1 2 1 3 4 College N65 W102 2 0 0 2 1 0 0 1 1 Fredericksburg N38 W 78 3 0 0 2 0 1 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 2 1 1 1 2 3 Wingst N54 E 95 -1 -1 -1 -1 -1 -1 -1 -1 -1 2021 Feb 16 Boulder N49 W 42 17 1 4 4 5 2 3 1 1 Chambon-la-foret N-- E--- 14 1 3 3 3 2 2 1 1 College N65 W102 45 1 3 7 7 4 4 2 1 Fredericksburg N38 W 78 11 1 3 3 4 2 2 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) 15 2 4 4 4 2 3 2 1 Wingst N54 E 95 -1 -1 -1 -1 -1 -1 -1 -1 -1 2021 Feb 17 Boulder N49 W 42 9 2 3 3 2 3 2 1 1 Chambon-la-foret N-- E--- 12 1 1 1 1 2 2 2 2 College N65 W102 10 1 1 2 4 4 2 1 1 Fredericksburg N38 W 78 6 1 2 2 2 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) 8 2 3 2 2 2 2 2 2 Wingst N54 E 95 -1 -1 -1 -1 -1 -1 -1 -1 -1 2021 Feb 18 Boulder N49 W 42 4 1 1 2 1 2 1 1 0 Chambon-la-foret N-- E--- 6 2 2 1 1 1 0 0 1 College N65 W102 5 1 1 3 3 1 0 0 0 Fredericksburg N38 W 78 2 2 1 1 1 1 0 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) 5 3 2 1 1 1 0 0 1 Wingst N54 E 95 -1 -1 -1 -1 -1 -1 -1 -1 -1 2021 Feb 19 Boulder N49 W 42 15 2 1 2 3 4 3 3 4 Chambon-la-foret N-- E--- 27 2 1 1 2 3 3 4 4 College N65 W102 31 0 0 3 5 5 6 4 4 Fredericksburg N38 W 78 13 2 1 1 1 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) 17 2 1 2 2 4 4 4 4 Wingst N54 E 95 -1 -1 -1 -1 -1 -1 -1 -1 -1 2021 Feb 20 Boulder N49 W 42 20 3 3 4 3 3 4 4 3 Chambon-la-foret N-- E--- 43 3 2 3 3 3 5 4 4 College N65 W102 40 2 3 6 6 5 5 3 4 Fredericksburg N38 W 78 15 2 2 3 2 3 3 4 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) 20 3 3 4 3 3 4 4 4 Wingst N54 E 95 -1 -1 -1 -1 -1 -1 -1 -1 -1 2021 Feb 21 Boulder N49 W 42 22 3 3 5 5 4 2 1 3 Chambon-la-foret N-- E--- 32 4 3 3 4 3 2 2 4 College N65 W102 49 3 4 6 7 6 4 3 2 Fredericksburg N38 W 78 18 3 3 4 4 4 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) 20 4 4 4 4 4 2 2 3 Wingst N54 E 95 -1 -1 -1 -1 -1 -1 -1 -1 -1