PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-21:58:10
G08     308.0          20.1                9.3 +/-    2.17      20.3 +/-    2.17  0.080 / 0.080
G10     333.5          60.3                5.8 +/-    0.52       6.6 +/-    0.52  0.090 / 0.100
G14     218.3          30.8                9.8 +/-    3.19      16.8 +/-    3.19  0.070 / 0.220
G15     46.9           14.3                5.6 +/-    0.88      14.2 +/-    0.88  0.090 / 0.210
G20     38.5           60.2                9.5 +/-    0.83      10.8 +/-    0.83  0.040 / 0.060
G21     134.8          56.3                9.4 +/-    0.66      11.1 +/-    0.66  0.030 / 0.050
G24     70.5           28.7                6.7 +/-    0.47      12.1 +/-    0.47  0.080 / 0.110
G27     275.7          37.0               11.0 +/-    1.19      16.8 +/-    1.19  0.080 / 0.120
G32     223.6          53.8                8.8 +/-    0.60      10.6 +/-    0.60  0.120 / 0.290