{"slug":"noaa-kp","name":"Geomagnetic activity (Kp index)","description":"NOAA SWPC planetary K index.","unit":"Kp","frequency":"daily","source":{"name":"NOAA Space Weather Prediction Center","url":"https://services.swpc.noaa.gov"},"licence":{"name":"Public domain (US Government)","url":"https://www.weather.gov/disclaimer"},"attribution":"NOAA SWPC","retrieved":"2026-09-17 03:10:03","stale":false,"built":"2026-09-16T23:54:10+00:00","series":[{"key":"kp-max","label":"Daily maximum Kp","first":"2026-08-24","last":"2026-09-16","points":[["2026-08-24",3],["2026-08-25",1.67],["2026-08-26",1],["2026-08-27",1.33],["2026-08-28",4.33],["2026-08-29",4.33],["2026-08-30",3.67],["2026-08-31",3.33],["2026-09-01",2.67],["2026-09-02",2.33],["2026-09-03",2.33],["2026-09-04",1.67],["2026-09-05",2.67],["2026-09-06",1.67],["2026-09-07",4.33],["2026-09-08",5],["2026-09-09",3],["2026-09-10",2.67],["2026-09-11",3],["2026-09-12",3],["2026-09-13",3],["2026-09-14",4],["2026-09-15",3.33],["2026-09-16",3.67]]}]}