PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-01:27:10
G02     36.4           52.6                9.7 +/-    0.93      11.9 +/-    0.93  0.040 / 0.030
G05     130.5          64.6               10.4 +/-    0.47      11.4 +/-    0.47  0.030 / 0.030
G06     55.5           13.3                4.9 +/-    2.18      12.7 +/-    2.18  0.030 / 0.030
G12     195.4          64.6               10.0 +/-    0.82      10.9 +/-    0.82  0.030 / 0.040
G19     101.8          9.3                10.0 +/-    2.24      28.3 +/-    2.24  0.080 / 0.170
G25     293.7          54.4                9.7 +/-    2.61      11.6 +/-    2.61  0.070 / 0.140
G29     308.8          29.2                7.8 +/-    1.38      13.9 +/-    1.38  0.060 / 0.050