PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/24-01:42:40
G02     356.2          76.7                8.6 +/-    0.40       8.8 +/-    0.40  0.060 / 0.050
G05     162.0          36.5               13.8 +/-    1.31      21.3 +/-    1.31  0.070 / 0.060
G06     42.2           38.3                7.9 +/-    0.75      11.8 +/-    0.75  0.030 / 0.030
G12     307.9          72.9               11.5 +/-    1.10      12.0 +/-    1.10  0.030 / 0.030
G17     86.1           13.9                9.7 +/-    2.12      24.7 +/-    2.12  0.060 / 0.080
G19     76.4           26.9                8.6 +/-    1.34      16.1 +/-    1.34  0.040 / 0.060
G24     226.9          21.4               12.7 +/-    1.13      27.0 +/-    1.13  0.120 / 0.130
G25     317.0          29.8                7.9 +/-    1.77      13.9 +/-    1.77  0.090 / 0.150