PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/28-06:12:40
G01     298.9          37.6                5.0 +/-    1.58       7.6 +/-    1.58  0.080 / 0.100
G10     113.5          35.3                5.7 +/-    1.28       9.0 +/-    1.28  0.080 / 0.110
G11     270.0          29.1                4.7 +/-    2.04       8.5 +/-    2.04  0.070 / 0.040
G14     16.1           61.8                3.9 +/-    0.67       4.3 +/-    0.67  0.070 / 0.040
G18     121.7          10.1                3.5 +/-    1.96       9.6 +/-    1.96  0.050 / 0.030
G22     312.3          33.3                1.2 +/-    1.58       2.0 +/-    1.58  0.040 / 0.030
G25     69.4           17.1                2.6 +/-    1.94       6.3 +/-    1.94  0.070 / 0.210
G31     155.1          73.4                8.4 +/-    0.88       8.7 +/-    0.88  0.110 / 0.180
G32     43.4           47.6                4.4 +/-    0.67       5.8 +/-    0.67  0.050 / 0.070