PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-20:58:00
G06     178.7          24.9               20.1 +/-    1.94      39.4 +/-    1.94  0.030 / 0.060
G11     43.8           12.5                8.6 +/-    1.17      22.7 +/-    1.17  0.040 / 0.060
G13     247.3          29.7               16.9 +/-    1.76      29.9 +/-    1.76  0.150 / 0.450
G15     280.7          15.4               12.4 +/-    1.64      30.4 +/-    1.64  0.150 / 0.340
G17     328.3          78.1               13.0 +/-    0.67      13.3 +/-    0.67  0.070 / 0.070
G19     249.8          62.0               14.9 +/-    0.86      16.6 +/-    0.86  0.070 / 0.090
G24     318.6          10.7              -11.9 +/-   33.29     -32.7 +/-   33.29  0.040 / 0.050
G28     49.7           54.8               11.4 +/-    0.54      13.6 +/-    0.54  0.050 / 0.050
G30     150.3          37.4               16.2 +/-    1.17      24.5 +/-    1.17  0.100 / 0.170