PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/04-17:42:30
G08     299.7          22.9                7.7 +/-    1.49      15.9 +/-    1.49  0.030 / 0.040
G10     351.0          62.2                6.4 +/-    0.48       7.1 +/-    0.48  0.030 / 0.030
G14     223.2          39.5                7.5 +/-    1.79      11.0 +/-    1.79  0.080 / 0.110
G20     53.2           56.4                7.9 +/-    0.30       9.3 +/-    0.30  0.080 / 0.140
G21     141.4          45.7               11.4 +/-    0.78      15.2 +/-    0.78  0.060 / 0.070
G24     60.0           25.8                9.3 +/-    0.83      17.9 +/-    0.83  0.050 / 0.060
G27     266.5          35.0                9.8 +/-    1.43      15.5 +/-    1.43  0.070 / 0.100
G32     232.3          60.1                9.0 +/-    0.71      10.2 +/-    0.71  0.080 / 0.110