PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/16-00:43:10
G07     336.1          59.0                3.9 +/-    0.82       4.5 +/-    0.82  0.080 / 0.120
G08     96.8           52.5                6.9 +/-    0.41       8.5 +/-    0.41  0.090 / 0.130
G09     191.4          72.3                6.0 +/-    0.72       6.3 +/-    0.72  0.030 / 0.040
G11     145.7          13.7                7.4 +/-    1.69      18.9 +/-    1.69  0.030 / 0.040
G23     156.1          39.4                7.7 +/-    0.53      11.3 +/-    0.53  0.030 / 0.040
G27     52.5           29.8                4.2 +/-    1.61       7.3 +/-    1.61  0.040 / 0.050
G28     239.3          31.9                6.4 +/-    1.81      10.8 +/-    1.81  0.030 / 0.020
G30     305.5          39.0                4.5 +/-    1.16       6.7 +/-    1.16  0.030 / 0.030