PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-06:27:50
G01     311.8          29.3                6.8 +/-    2.28      12.0 +/-    2.28  0.070 / 0.150
G10     99.7           44.0                4.9 +/-    0.48       6.7 +/-    0.48  0.100 / 0.150
G11     288.4          27.5                4.2 +/-    1.43       7.8 +/-    1.43  0.060 / 0.180
G14     333.4          69.5                5.5 +/-    0.72       5.8 +/-    0.72  0.070 / 0.170
G18     287.0          48.2                5.5 +/-    0.91       7.0 +/-    0.91  0.040 / 0.060
G20     115.2          24.7                6.6 +/-    1.15      12.9 +/-    1.15  0.040 / 0.050
G22     307.9          22.7                4.2 +/-    1.04       8.6 +/-    1.04  0.120 / 0.130
G25     87.9           14.6                3.6 +/-    1.14       9.1 +/-    1.14  0.090 / 0.140
G31     167.2          60.4                7.1 +/-    0.77       8.0 +/-    0.77  0.040 / 0.050
G32     31.9           55.2                3.4 +/-    0.68       4.0 +/-    0.68  0.040 / 0.050