PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/04-18:13:00
G10     280.5          45.5               11.0 +/-    1.13      14.7 +/-    1.13  0.040 / 0.030
G15     51.2           42.1                7.9 +/-    0.83      11.1 +/-    0.83  0.030 / 0.030
G20     322.2          64.3                9.3 +/-    0.41      10.2 +/-    0.41  0.030 / 0.070
G21     49.2           76.6               10.2 +/-    0.42      10.5 +/-    0.42  0.040 / 0.050
G24     106.5          20.8               13.2 +/-    2.14      28.5 +/-    2.14  0.110 / 0.180
G27     313.1          25.8               10.0 +/-    1.16      19.3 +/-    1.16  0.100 / 0.190
G29     168.2          19.1               13.6 +/-    1.86      30.7 +/-    1.86  0.080 / 0.060
G32     206.3          19.9               14.1 +/-    2.66      31.0 +/-    2.66  0.080 / 0.070