PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-03:27:50
G01     307.5          33.1                4.3 +/-    1.09       7.0 +/-    1.09  0.130 / 0.150
G10     105.8          40.0                7.2 +/-    0.93      10.5 +/-    0.93  0.090 / 0.130
G11     281.0          28.4                5.8 +/-    1.49      10.5 +/-    1.49  0.070 / 0.100
G14     353.4          67.4                5.4 +/-    0.73       5.8 +/-    0.73  0.060 / 0.120
G18     277.4          49.9                6.7 +/-    0.98       8.5 +/-    0.98  0.050 / 0.050
G20     112.4          46.7               12.1 +/-    2.13      15.9 +/-    2.13  0.040 / 0.050
G22     309.5          24.7                4.2 +/-    0.84       8.3 +/-    0.84  0.090 / 0.270
G25     81.6           16.2                4.5 +/-    1.59      10.9 +/-    1.59  0.090 / 0.340
G31     162.0          66.4                9.2 +/-    0.84       9.9 +/-    0.84  0.080 / 0.200
G32     37.9           51.1                5.5 +/-    0.59       6.9 +/-    0.59  0.080 / 0.190