PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-03:43:00
G01     252.4          36.0                5.2 +/-    2.08       8.1 +/-    2.08  0.110 / 0.260
G03     316.1          40.2                3.0 +/-    1.11       4.4 +/-    1.11  0.100 / 0.240
G11     236.7          13.6                4.0 +/-    1.59      10.3 +/-    1.59  0.070 / 0.070
G14     60.1           40.3                2.2 +/-    0.88       3.2 +/-    0.88  0.080 / 0.070
G16     166.1          15.4               -2.9 +/-   12.27      -7.2 +/-   12.27  0.060 / 0.080
G22     306.8          64.2                4.1 +/-    0.73       4.5 +/-    0.73  0.090 / 0.100
G23     284.9          17.1                5.6 +/-    0.80      13.3 +/-    0.80  0.040 / 0.040
G26     141.5          35.5                6.7 +/-    0.83      10.5 +/-    0.83  0.040 / 0.030
G31     40.5           62.7                3.4 +/-    0.58       3.8 +/-    0.58  0.030 / 0.030
G32     74.8           26.2                1.8 +/-    3.11       3.5 +/-    3.11  0.020 / 0.050