PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-06:12:50
G01     272.8          41.2                5.8 +/-    2.75       8.3 +/-    2.75  0.060 / 0.060
G03     315.5          27.4                2.7 +/-    2.43       5.0 +/-    2.43  0.040 / 0.050
G10     128.9          17.9                5.7 +/-    0.77      13.3 +/-    0.77  0.060 / 0.070
G11     251.2          20.7                5.1 +/-    3.01      11.0 +/-    3.01  0.080 / 0.080
G14     39.3           52.4                7.1 +/-    1.81       8.6 +/-    1.81  0.060 / 0.060
G18     235.7          40.1                6.0 +/-    1.46       8.7 +/-    1.46  0.060 / 0.060
G22     314.3          50.9                5.6 +/-    1.04       7.0 +/-    1.04  0.140 / 0.360
G25     53.3           16.8                2.9 +/-    3.38       6.8 +/-    3.38  0.180 / 0.300
G31     56.1           72.6                5.7 +/-    0.38       6.0 +/-    0.38  0.130 / 0.140
G32     64.1           31.7                4.5 +/-    1.51       7.6 +/-    1.51  0.310 / 0.170