PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/09-07:12:40
G01     111.5          23.0                5.6 +/-    1.50      11.4 +/-    1.50  0.040 / 0.040
G07     99.7           60.5                3.7 +/-    1.18       4.2 +/-    1.18  0.060 / 0.040
G08     42.4           23.3                0.7 +/-    2.24       1.5 +/-    2.24  0.030 / 0.040
G09     175.5          17.8                4.2 +/-    0.76       9.8 +/-    0.76  0.030 / 0.030
G11     95.1           41.4                4.6 +/-    1.19       6.6 +/-    1.19  0.080 / 0.110
G13     314.0          24.1               -0.6 +/-    1.76      -1.3 +/-    1.76  0.070 / 0.080
G17     203.7          34.8                6.0 +/-    1.06       9.6 +/-    1.06  0.090 / 0.210
G28     309.9          60.2                0.6 +/-    1.04       0.7 +/-    1.04  0.170 / 0.150
G30     7.3            75.0                1.7 +/-    0.38       1.7 +/-    0.38  0.130 / 0.200