PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-04:42:50
G08     269.0          18.7                9.7 +/-    1.18      22.1 +/-    1.18  0.110 / 0.300
G10     58.3           58.9                7.3 +/-    0.58       8.4 +/-    0.58  0.110 / 0.320
G14     260.4          62.9                9.1 +/-    1.21      10.0 +/-    1.21  0.040 / 0.060
G18     313.3          30.2               11.9 +/-    2.58      20.7 +/-    2.58  0.040 / 0.060
G20     85.3           49.7                8.4 +/-    0.71      10.6 +/-    0.71  0.030 / 0.030
G21     154.7          17.7                6.8 +/-    4.44      15.9 +/-    4.44  0.030 / 0.030
G27     233.0          16.9                9.6 +/-    2.26      22.8 +/-    2.26  0.110 / 0.340
G31     177.0          30.6               11.1 +/-    1.47      19.3 +/-    1.47  0.090 / 0.240
G32     340.9          74.5                8.5 +/-    0.55       8.8 +/-    0.55  0.100 / 0.230