PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/05-02:27:50
G02     271.7          81.4                7.1 +/-    0.66       7.2 +/-    0.66  0.030 / 0.030
G05     168.4          22.3                8.5 +/-    5.09      17.6 +/-    5.09  0.040 / 0.030
G06     39.8           53.1                6.8 +/-    0.80       8.2 +/-    0.80  0.130 / 0.150
G12     320.8          57.2                6.7 +/-    0.43       7.8 +/-    0.43  0.070 / 0.140
G17     74.1           22.2                6.0 +/-    0.80      12.5 +/-    0.80  0.310 / 0.330
G19     62.7           35.5                7.2 +/-    1.31      11.4 +/-    1.31  0.310 / 0.270
G24     239.7          31.4               10.9 +/-    1.42      18.5 +/-    1.42  0.040 / 0.040
G25     317.5          16.5                5.9 +/-    1.67      14.3 +/-    1.67  0.050 / 0.050