PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-03:12:40
G08     280.2          22.7                8.0 +/-    1.46      16.6 +/-    1.46  0.060 / 0.160
G10     29.1           62.9                4.8 +/-    0.80       5.3 +/-    0.80  0.070 / 0.160
G14     242.6          57.5                9.2 +/-    0.72      10.7 +/-    0.72  0.080 / 0.130
G18     75.3           46.4                5.5 +/-    0.60       7.2 +/-    0.60  0.060 / 0.170
G21     150.5          29.4                6.8 +/-    1.84      12.0 +/-    1.84  0.040 / 0.030
G24     48.4           21.2                3.0 +/-    0.69       6.5 +/-    0.69  0.040 / 0.030
G27     242.1          25.1                8.3 +/-    2.14      16.2 +/-    2.14  0.040 / 0.070
G31     181.6          15.6                9.9 +/-    1.70      24.3 +/-    1.70  0.040 / 0.070
G32     273.7          73.6                7.4 +/-    0.36       7.7 +/-    0.36  0.090 / 0.130