PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/09-15:13:10
G02     357.0          76.1                7.7 +/-    1.00       7.9 +/-    1.00  0.020 / 0.040
G05     165.7          35.4               12.7 +/-    1.15      20.0 +/-    1.15  0.030 / 0.040
G06     42.4           38.4                5.7 +/-    0.45       8.5 +/-    0.45  0.040 / 0.040
G12     303.2          74.2                8.0 +/-    0.70       8.3 +/-    0.70  0.030 / 0.030
G19     80.0           23.3                7.9 +/-    0.72      16.1 +/-    0.72  0.090 / 0.130
G24     226.8          20.4               10.9 +/-    1.64      23.7 +/-    1.64  0.080 / 0.120
G25     316.1          34.9                8.4 +/-    1.67      13.3 +/-    1.67  0.040 / 0.070
G29     291.3          15.2                8.5 +/-    1.32      20.9 +/-    1.32  0.050 / 0.100