PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-01:27:30
G02     36.4           52.6                8.5 +/-    0.73      10.4 +/-    0.73  0.040 / 0.040
G05     130.5          64.6               11.0 +/-    0.86      12.1 +/-    0.86  0.030 / 0.050
G06     55.5           13.3                5.4 +/-    1.31      14.1 +/-    1.31  0.030 / 0.040
G12     195.4          64.6                9.3 +/-    0.89      10.2 +/-    0.89  0.040 / 0.030
G25     293.7          54.4                9.3 +/-    0.51      11.1 +/-    0.51  0.060 / 0.050
G29     308.8          29.2                7.9 +/-    1.75      14.0 +/-    1.75  0.070 / 0.060