PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-23:57:40
G07     16.4           68.2                6.2 +/-    0.57       6.6 +/-    0.57  0.040 / 0.050
G08     64.4           49.3                6.4 +/-    0.73       8.2 +/-    0.73  0.040 / 0.060
G09     180.9          50.2                7.7 +/-    1.70       9.7 +/-    1.70  0.050 / 0.080
G11     132.2          26.9               10.0 +/-    0.78      18.7 +/-    0.78  0.040 / 0.090
G23     159.8          18.2                9.1 +/-    1.05      20.9 +/-    1.05  0.100 / 0.300
G27     40.0           16.1                5.2 +/-    1.45      12.5 +/-    1.45  0.100 / 0.300
G28     260.1          46.4                9.2 +/-    0.92      12.1 +/-    0.92  0.090 / 0.290
G30     325.0          54.3                6.4 +/-    0.71       7.7 +/-    0.71  0.090 / 0.210