PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-23:43:00
G08     293.0          23.4                7.4 +/-    0.66      14.9 +/-    0.66  0.060 / 0.090
G10     6.2            62.9                7.2 +/-    1.02       8.0 +/-    1.02  0.070 / 0.090
G14     229.0          44.8               10.5 +/-    2.51      14.2 +/-    2.51  0.090 / 0.120
G20     64.1           52.8                7.6 +/-    1.11       9.3 +/-    1.11  0.090 / 0.100
G21     146.2          41.3                8.0 +/-    0.90      11.3 +/-    0.90  0.150 / 0.180
G24     54.9           24.3                6.9 +/-    2.04      13.7 +/-    2.04  0.090 / 0.230
G27     256.4          32.1                7.3 +/-    2.71      12.3 +/-    2.71  0.040 / 0.030
G32     245.3          68.4                7.8 +/-    0.65       8.3 +/-    0.65  0.030 / 0.030