PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-00:12:30
G07     30.2           69.3                6.8 +/-    0.55       7.2 +/-    0.55  0.110 / 0.190
G08     58.2           46.3                5.0 +/-    0.39       6.7 +/-    0.39  0.180 / 0.220
G09     180.0          44.8                9.2 +/-    1.53      12.5 +/-    1.53  0.060 / 0.080
G11     127.9          30.1                8.3 +/-    1.92      14.4 +/-    1.92  0.050 / 0.070
G23     160.2          13.5                8.1 +/-    3.17      20.9 +/-    3.17  0.040 / 0.060
G27     38.4           12.2                4.0 +/-    2.31      10.8 +/-    2.31  0.030 / 0.060
G28     266.6          49.4                7.3 +/-    1.28       9.3 +/-    1.28  0.020 / 0.040
G30     330.4          58.1                4.8 +/-    0.61       5.5 +/-    0.61  0.020 / 0.040