PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-04:12:30
G07     312.5          49.3                5.2 +/-    0.59       6.6 +/-    0.59  0.300 / 0.340
G08     121.8          43.8                7.5 +/-    0.94      10.3 +/-    0.94  0.130 / 0.270
G09     283.8          82.1                8.3 +/-    0.23       8.4 +/-    0.23  0.050 / 0.040
G16     42.0           26.1                4.1 +/-    1.93       7.8 +/-    1.93  0.050 / 0.040
G23     147.6          60.8                7.5 +/-    0.41       8.5 +/-    0.41  0.040 / 0.050
G27     72.6           36.5                6.9 +/-    1.02      10.6 +/-    1.02  0.040 / 0.040
G28     226.4          16.7                4.8 +/-    8.19      11.4 +/-    8.19  0.080 / 0.180
G30     289.1          24.9                4.5 +/-    1.94       8.8 +/-    1.94  0.190 / 0.180