PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-20:13:10
G05     47.7           20.8               11.2 +/-    2.21      24.2 +/-    2.21  0.180 / 0.270
G13     78.4           36.3               14.0 +/-    1.04      21.7 +/-    1.04  0.130 / 0.210
G15     136.5          49.5               14.0 +/-    0.69      17.7 +/-    0.69  0.170 / 0.420
G16     315.4          12.1               11.7 +/-    6.87      31.2 +/-    6.87  0.160 / 0.430
G20     246.0          35.1               13.9 +/-    1.76      22.1 +/-    1.76  0.170 / 0.520
G21     311.0          45.3               12.7 +/-    1.17      17.0 +/-    1.17  0.130 / 0.360
G25     199.1          11.8               13.4 +/-    1.77      35.9 +/-    1.77  0.070 / 0.070
G26     289.3          20.6               13.5 +/-    1.26      29.2 +/-    1.26  0.060 / 0.090
G29     153.4          75.8               12.2 +/-    1.31      12.5 +/-    1.31  0.080 / 0.090