PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/18-13:27:50
G01     293.6          40.1               11.9 +/-    4.23      17.2 +/-    4.23  0.070 / 0.080
G03     311.7          18.4                3.4 +/-    2.53       7.8 +/-    2.53  0.070 / 0.080
G10     117.7          29.5                6.0 +/-    1.72      10.6 +/-    1.72  0.040 / 0.050
G11     266.2          26.3                4.4 +/-    1.72       8.4 +/-    1.72  0.050 / 0.050
G14     22.1           59.7                5.6 +/-    1.18       6.3 +/-    1.18  0.080 / 0.080
G18     251.7          48.8                5.4 +/-    4.04       6.9 +/-    4.04  0.070 / 0.110
G22     314.3          39.9                3.4 +/-    1.43       5.0 +/-    1.43  0.060 / 0.070
G25     67.7           17.8                3.7 +/-    1.41       8.6 +/-    1.41  0.060 / 0.070
G31     149.5          76.4                5.6 +/-    0.85       5.7 +/-    0.85  0.030 / 0.050
G32     44.8           47.3                4.6 +/-    0.94       5.9 +/-    0.94  0.040 / 0.030