PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/11-04:13:00
G03     234.9          66.0                4.9 +/-    0.84       5.3 +/-    0.84  0.040 / 0.060
G07     250.5          10.7               -3.0 +/-   18.02      -8.4 +/-   18.02  0.050 / 0.060
G09     306.0          22.2                2.6 +/-    0.88       5.4 +/-    0.88  0.090 / 0.460
G14     103.2          10.8                4.2 +/-    1.71      11.5 +/-    1.71  0.080 / 0.500
G16     129.0          61.2                7.4 +/-    0.56       8.4 +/-    0.56  0.060 / 0.070
G22     193.7          52.6                7.3 +/-    1.13       8.9 +/-    1.13  0.050 / 0.050
G23     320.7          50.4                4.3 +/-    1.04       5.4 +/-    1.04  0.030 / 0.050
G26     68.9           53.5                4.4 +/-    0.37       5.3 +/-    0.37  0.030 / 0.050
G31     52.9           20.2                2.3 +/-    0.97       5.1 +/-    0.97  0.070 / 0.170