PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-13:27:50
G01     305.8          34.7                4.9 +/-    1.96       7.8 +/-    1.96  0.090 / 0.090
G10     107.6          37.9                6.5 +/-    1.01       9.7 +/-    1.01  0.080 / 0.100
G11     278.7          28.1                6.1 +/-    2.04      11.1 +/-    2.04  0.060 / 0.030
G14     2.4            66.0                3.4 +/-    0.72       3.7 +/-    0.72  0.060 / 0.030
G18     270.3          51.4               -0.4 +/-    6.58      -0.5 +/-    6.58  0.040 / 0.060
G20     121.5          12.7                6.8 +/-    1.47      17.9 +/-    1.47  0.050 / 0.050
G22     311.2          30.1                4.2 +/-    1.26       7.3 +/-    1.26  0.060 / 0.060
G25     78.8           16.3                6.7 +/-    3.17      16.2 +/-    3.17  0.060 / 0.060
G31     169.5          64.6                6.2 +/-    0.63       6.8 +/-    0.63  0.080 / 0.060
G32     32.8           54.8                3.9 +/-    1.22       4.7 +/-    1.22  0.060 / 0.070