PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-07:28:00
G01     108.5          24.7                5.3 +/-    0.74      10.5 +/-    0.74  0.040 / 0.050
G07     105.0          58.2                5.7 +/-    0.76       6.6 +/-    0.76  0.030 / 0.050
G08     42.0           20.6                2.2 +/-    2.06       4.7 +/-    2.06  0.030 / 0.030
G09     175.0          14.8                3.9 +/-    3.28       9.6 +/-    3.28  0.030 / 0.030
G11     90.7           41.7                5.5 +/-    1.03       7.8 +/-    1.03  0.090 / 0.060
G13     311.9          26.2                2.9 +/-    1.85       5.4 +/-    1.85  0.060 / 0.080
G17     204.8          38.1                7.3 +/-    0.68      10.9 +/-    0.68  0.080 / 0.130
G19     208.5          12.9                4.7 +/-    2.33      12.4 +/-    2.33  0.160 / 0.160
G28     316.1          60.8                2.7 +/-    0.82       3.1 +/-    0.82  0.190 / 0.220
G30     18.0           77.0                4.0 +/-    0.56       4.1 +/-    0.56  0.130 / 0.160