PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-12:12:50
G01     247.6          34.5                8.9 +/-    1.80      14.2 +/-    1.80  0.090 / 0.090
G03     315.4          51.3                3.1 +/-    0.94       3.8 +/-    0.94  0.080 / 0.070
G14     62.8           38.9                1.9 +/-    1.00       2.8 +/-    1.00  0.050 / 0.070
G16     164.3          18.1               -6.0 +/-   11.90     -13.9 +/-   11.90  0.050 / 0.050
G18     217.0          24.8                6.1 +/-    2.49      11.9 +/-    2.49  0.050 / 0.030
G22     296.0          72.6                3.2 +/-    0.39       3.4 +/-    0.39  0.040 / 0.030
G23     288.5          21.2                5.9 +/-    5.67      12.7 +/-    5.67  0.060 / 0.080
G26     137.3          39.1                5.2 +/-    1.09       7.7 +/-    1.09  0.050 / 0.080
G31     41.0           56.7                2.1 +/-    0.82       2.4 +/-    0.82  0.100 / 0.230
G32     76.8           25.5                3.3 +/-    1.51       6.4 +/-    1.51  0.100 / 0.190