PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-05:42:50
G01     317.8          20.8                4.6 +/-    1.85       9.9 +/-    1.85  0.040 / 0.050
G08     254.7          11.4                7.2 +/-    5.83      19.6 +/-    5.83  0.040 / 0.040
G10     85.2           51.1                5.2 +/-    1.41       6.5 +/-    1.41  0.100 / 0.250
G11     299.8          24.6                4.0 +/-    2.04       8.0 +/-    2.04  0.090 / 0.300
G14     300.4          69.8                4.6 +/-    0.50       4.8 +/-    0.50  0.240 / 0.270
G18     301.3          42.5                4.8 +/-    2.64       6.7 +/-    2.64  0.260 / 0.240
G20     105.1          35.6                6.5 +/-    1.05      10.3 +/-    1.05  0.100 / 0.130
G22     302.9          14.2                3.9 +/-    2.20      10.0 +/-    2.20  0.070 / 0.160
G31     172.8          47.9                6.3 +/-    1.30       8.2 +/-    1.30  0.230 / 0.350
G32     17.6           63.6                4.5 +/-    0.53       5.0 +/-    0.53  0.230 / 0.300