PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-03:58:00
G08     268.8          19.5                9.0 +/-    2.38      20.1 +/-    2.38  0.060 / 0.060
G10     52.9           60.4                6.4 +/-    1.12       7.2 +/-    1.12  0.050 / 0.060
G11     312.2          17.1                7.7 +/-    3.12      18.2 +/-    3.12  0.020 / 0.040
G14     262.1          65.7                8.5 +/-    0.85       9.2 +/-    0.85  0.030 / 0.030
G18     87.5           39.8                8.6 +/-    0.71      12.5 +/-    0.71  0.080 / 0.150
G21     153.6          18.5                8.9 +/-    3.44      20.4 +/-    3.44  0.060 / 0.140
G24     41.8           13.9                5.5 +/-    0.92      14.2 +/-    0.92  0.090 / 0.290
G27     233.0          17.7               12.8 +/-    1.63      29.7 +/-    1.63  0.090 / 0.350
G31     179.2          26.6               10.5 +/-    1.98      19.8 +/-    1.98  0.120 / 0.270
G32     320.6          75.3                8.8 +/-    0.80       9.0 +/-    0.80  0.110 / 0.280