PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-22:43:10
G07     316.9          51.1                8.2 +/-    0.97      10.2 +/-    0.97  0.190 / 0.490
G08     119.9          46.6               10.7 +/-    0.63      14.1 +/-    0.63  0.150 / 0.460
G09     253.8          82.6               10.4 +/-    1.23      10.5 +/-    1.23  0.050 / 0.070
G16     43.4           17.8                8.0 +/-    2.69      18.6 +/-    2.69  0.070 / 0.060
G23     150.0          53.3                9.4 +/-    0.60      11.4 +/-    0.60  0.040 / 0.050
G27     67.0           35.7                8.3 +/-    1.21      13.0 +/-    1.21  0.030 / 0.050
G28     229.2          20.7                9.3 +/-    3.79      20.1 +/-    3.79  0.150 / 0.250
G30     294.7          30.9                9.5 +/-    1.78      16.4 +/-    1.78  0.110 / 0.370