PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-07:58:00
G08     271.8          18.7                6.5 +/-    1.91      14.8 +/-    1.91  0.040 / 0.070
G10     56.9           59.3                3.1 +/-    0.88       3.5 +/-    0.88  0.050 / 0.070
G14     257.4          60.7                5.0 +/-    0.66       5.6 +/-    0.66  0.080 / 0.330
G18     313.7          29.2                4.8 +/-    2.62       8.6 +/-    2.62  0.080 / 0.270
G20     99.3           24.8                4.4 +/-    1.02       8.7 +/-    1.02  0.110 / 0.220
G21     154.5          17.9                4.5 +/-    2.43      10.5 +/-    2.43  0.120 / 0.280
G24     40.4           11.2                2.4 +/-    2.17       6.4 +/-    2.17  0.030 / 0.040
G27     233.2          17.2                7.6 +/-    2.53      17.8 +/-    2.53  0.020 / 0.040
G31     177.1          30.0                6.6 +/-    1.74      11.6 +/-    1.74  0.090 / 0.180
G32     338.4          74.8                3.9 +/-    0.64       4.0 +/-    0.64  0.080 / 0.210