PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/21-12:58:00
G01     302.8          36.5                4.3 +/-    2.50       6.6 +/-    2.50  0.050 / 0.080
G10     110.7          35.6                4.7 +/-    0.52       7.4 +/-    0.52  0.050 / 0.090
G11     275.2          27.9                4.9 +/-    2.11       9.0 +/-    2.11  0.040 / 0.040
G14     8.5            64.3                4.4 +/-    0.62       4.8 +/-    0.62  0.040 / 0.050
G18     265.2          51.1                6.4 +/-    7.83       7.9 +/-    7.83  0.070 / 0.060
G20     123.4          10.4                5.3 +/-    1.26      14.7 +/-    1.26  0.060 / 0.050
G22     312.3          33.2                3.2 +/-    0.65       5.3 +/-    0.65  0.040 / 0.040
G25     76.0           17.0                4.1 +/-    1.21       9.7 +/-    1.21  0.040 / 0.030
G31     165.5          68.4                5.6 +/-    0.46       6.0 +/-    0.46  0.090 / 0.080
G32     36.0           53.0                4.2 +/-    1.19       5.1 +/-    1.19  0.070 / 0.070