PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/17-03:27:50
G08     273.8          19.3                8.6 +/-    0.61      19.2 +/-    0.61  0.150 / 0.280
G10     56.7           58.4                8.4 +/-    0.88       9.7 +/-    0.88  0.130 / 0.280
G14     258.0          63.7               10.1 +/-    1.09      11.2 +/-    1.09  0.110 / 0.340
G18     314.0          29.7                8.7 +/-    1.14      15.2 +/-    1.14  0.140 / 0.250
G20     91.9           39.2                8.4 +/-    0.67      12.4 +/-    0.67  0.030 / 0.030
G21     154.6          19.4                8.3 +/-    1.78      18.5 +/-    1.78  0.030 / 0.030
G24     41.5           12.6                5.9 +/-    2.73      15.5 +/-    2.73  0.050 / 0.050
G27     234.9          18.7                9.8 +/-    4.98      22.4 +/-    4.98  0.050 / 0.060
G31     177.9          27.8               11.3 +/-    3.80      20.7 +/-    3.80  0.080 / 0.150
G32     319.6          75.6                8.7 +/-    0.41       8.9 +/-    0.41  0.070 / 0.130