PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/11-02:27:30
G02     29.5           58.1                7.7 +/-    0.94       8.8 +/-    0.94  0.050 / 0.060
G05     144.1          58.4               10.4 +/-    0.77      12.0 +/-    0.77  0.060 / 0.050
G06     49.9           22.5                4.7 +/-    2.69       9.7 +/-    2.69  0.020 / 0.030
G12     216.3          74.4                8.1 +/-    0.49       8.4 +/-    0.49  0.030 / 0.030
G19     96.0           12.3                6.4 +/-    2.10      17.0 +/-    2.10  0.140 / 0.170
G25     302.2          51.2                7.9 +/-    3.33       9.9 +/-    3.33  0.110 / 0.180
G29     306.1          28.7                7.0 +/-    1.50      12.6 +/-    1.50  0.030 / 0.030