PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-22:27:30
G10     293.4          50.5               10.6 +/-    2.85      13.3 +/-    2.85  0.060 / 0.080
G15     47.7           36.0                8.8 +/-    0.96      13.7 +/-    0.96  0.060 / 0.090
G20     345.3          65.4                9.9 +/-    0.73      10.7 +/-    0.73  0.090 / 0.140
G21     85.5           75.8               10.8 +/-    0.62      11.1 +/-    0.62  0.080 / 0.120
G24     98.1           25.2               12.2 +/-    1.02      23.7 +/-    1.02  0.050 / 0.030
G27     304.2          32.3                9.5 +/-    1.73      15.8 +/-    1.73  0.050 / 0.030
G29     168.5          10.7               15.7 +/-    1.96      43.2 +/-    1.96  0.070 / 0.090
G32     209.1          30.4               13.2 +/-    1.71      23.0 +/-    1.71  0.060 / 0.050