PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/21-03:12:50
G01     310.0          31.0                7.3 +/-    2.11      12.5 +/-    2.11  0.090 / 0.130
G10     102.5          42.2                6.5 +/-    0.67       9.2 +/-    0.67  0.070 / 0.120
G11     284.5          28.3                8.2 +/-    0.73      14.9 +/-    0.73  0.090 / 0.120
G14     346.0          68.6                7.0 +/-    0.71       7.4 +/-    0.71  0.080 / 0.120
G18     282.4          49.3                7.2 +/-    1.00       9.2 +/-    1.00  0.040 / 0.050
G20     108.4          50.2                9.3 +/-    1.02      11.7 +/-    1.02  0.040 / 0.050
G22     308.3          22.2                6.5 +/-    1.18      13.5 +/-    1.18  0.070 / 0.170
G25     84.6           15.3                4.8 +/-    1.07      11.8 +/-    1.07  0.080 / 0.210
G31     165.3          63.0                9.0 +/-    0.88      10.0 +/-    0.88  0.080 / 0.210
G32     34.6           53.4                5.8 +/-    0.47       7.0 +/-    0.47  0.080 / 0.170