PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-18:13:10
G02     353.3          75.6                5.5 +/-    0.48       5.6 +/-    0.48  0.050 / 0.060
G05     161.9          39.3                8.6 +/-    0.77      12.6 +/-    0.77  0.050 / 0.090
G06     44.0           32.6                5.0 +/-    0.81       8.3 +/-    0.81  0.160 / 0.400
G12     282.8          81.0                4.8 +/-    0.56       4.8 +/-    0.56  0.130 / 0.460
G19     78.7           26.5                7.5 +/-    1.04      14.1 +/-    1.04  0.030 / 0.030
G24     222.3          18.0                8.1 +/-    2.02      18.7 +/-    2.02  0.030 / 0.030
G25     315.7          35.2                6.9 +/-    2.33      10.9 +/-    2.33  0.080 / 0.130
G29     290.0          11.2                6.5 +/-   16.99      17.6 +/-   16.99  0.060 / 0.130