PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/19-17:28:10
G05     47.8           21.5                6.1 +/-    0.49      12.8 +/-    0.49  0.040 / 0.080
G10     235.5          12.0               12.0 +/-    1.80      32.0 +/-    1.80  0.050 / 0.070
G13     76.7           36.2                8.1 +/-    0.76      12.6 +/-    0.76  0.160 / 0.490
G15     131.8          51.1               10.1 +/-    0.44      12.6 +/-    0.44  0.120 / 0.480
G16     314.9          12.1                7.2 +/-    2.67      19.3 +/-    2.67  0.070 / 0.130
G20     247.2          36.2                8.8 +/-    1.57      13.6 +/-    1.57  0.070 / 0.160
G21     313.1          47.0                6.6 +/-    1.10       8.6 +/-    1.10  0.080 / 0.140
G26     289.0          20.2                8.0 +/-    2.50      17.5 +/-    2.50  0.080 / 0.120
G29     153.8          73.6                9.7 +/-    0.91      10.1 +/-    0.91  0.030 / 0.040