PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-23:43:10
G05     47.2           21.2                7.4 +/-    0.46      15.7 +/-    0.46  0.050 / 0.160
G13     82.8           36.3               12.2 +/-    0.62      18.9 +/-    0.62  0.050 / 0.160
G15     135.3          47.9               12.3 +/-    0.70      15.9 +/-    0.70  0.130 / 0.450
G16     317.5          11.2                3.1 +/-   16.51       8.4 +/-   16.51  0.120 / 0.540
G20     240.3          18.4                9.3 +/-    0.91      21.3 +/-    0.91  0.040 / 0.080
G21     307.4          42.7                8.9 +/-    1.17      12.3 +/-    1.17  0.040 / 0.090
G25     202.0          15.1               12.1 +/-    1.77      30.0 +/-    1.77  0.110 / 0.220
G26     291.6          21.1               11.2 +/-    1.57      23.9 +/-    1.57  0.170 / 0.270
G29     149.8          79.9                9.3 +/-    0.39       9.4 +/-    0.39  0.060 / 0.130