:Data_list: RTST-yest.txt :Created: 2025 Apr 03 2330 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center. # Please send comments and suggestions to swpc.webmaster@noaa.gov # # Label: Hap = 3 hour Planetary A Geomagnetic index updated hourly. # Label: int.ap = Integral of Planetary Ap Geomagnetic index over the previous 33 values # Label: +70 = Correction factor at 70N Geomagnetic latitude # Label: +50 = Correction factor at 50N Geomagnetic latitude # Label: +30 = Correction factor at 30N Geomagnetic latitude # Label: -30 = Correction factor at 30S Geomagnetic latitude # Label: -50 = Correction factor at 50S Geomagnetic latitude # Label: -70 = Correction factor at 70S Geomagnetic latitude # Source: Hap is from USAF Hourly Magnetometer Analysis Report # Missing Data: linearly interpolated: 0 = not interpolated # # STORM Time Empirical Ionospheric Correction Model # # UTC Hap int.ap +70 +50 +30 -30 -50 -70 interpolated #------------------------------------------------------------