PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/12-11:27:40
G01     302.6          36.7                6.2 +/-    1.59       9.6 +/-    1.59  0.070 / 0.080
G03     308.8          13.4                3.9 +/-    1.94      10.0 +/-    1.94  0.060 / 0.080
G10     110.7          35.5                6.1 +/-    0.92       9.7 +/-    0.92  0.060 / 0.050
G11     275.4          27.8                6.9 +/-    4.29      12.6 +/-    4.29  0.050 / 0.050
G14     8.3            64.4                4.9 +/-    0.67       5.4 +/-    0.67  0.040 / 0.040
G18     265.9          50.9                3.7 +/-    6.19       4.7 +/-    6.19  0.050 / 0.030
G20     123.4          10.4                4.8 +/-    1.66      13.3 +/-    1.66  0.060 / 0.050
G25     76.7           17.1                3.3 +/-    2.24       7.7 +/-    2.24  0.040 / 0.050
G31     163.2          69.1                7.0 +/-    0.48       7.4 +/-    0.48  0.080 / 0.160
G32     34.8           53.8                4.3 +/-    1.62       5.2 +/-    1.62  0.080 / 0.130