PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/06-02:12:40
G02     246.7          78.3                8.6 +/-    0.43       8.8 +/-    0.43  0.050 / 0.030
G05     170.3          17.9               10.2 +/-    1.88      23.5 +/-    1.88  0.070 / 0.030
G06     40.4           58.0                7.2 +/-    0.72       8.4 +/-    0.72  0.040 / 0.040
G12     321.4          52.2                7.7 +/-    0.66       9.5 +/-    0.66  0.050 / 0.030
G17     69.9           25.2                8.3 +/-    1.28      16.1 +/-    1.28  0.150 / 0.080
G19     57.7           38.6                7.7 +/-    1.31      11.5 +/-    1.31  0.130 / 0.100
G24     244.7          34.3               12.3 +/-    2.25      19.8 +/-    2.25  0.190 / 0.230
G25     316.8          12.2                3.5 +/-   20.99       9.2 +/-   20.99  0.110 / 0.160