PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-00:12:50
G01     303.4          36.9                8.2 +/-    1.33      12.5 +/-    1.33  0.070 / 0.080
G10     109.2          35.9                8.7 +/-    0.49      13.6 +/-    0.49  0.060 / 0.080
G11     280.2          26.7                8.0 +/-    1.04      15.0 +/-    1.04  0.050 / 0.050
G14     356.4          66.7                7.0 +/-    0.91       7.5 +/-    0.91  0.050 / 0.050
G18     271.4          50.5               12.5 +/-    6.88      15.7 +/-    6.88  0.050 / 0.060
G20     122.7          10.6                7.5 +/-    3.23      20.7 +/-    3.23  0.060 / 0.060
G22     310.8          26.6                6.1 +/-    1.68      11.5 +/-    1.68  0.110 / 0.140
G25     80.4           17.0                8.2 +/-    1.45      19.5 +/-    1.45  0.070 / 0.130
G31     159.2          68.8                8.1 +/-    0.40       8.6 +/-    0.40  0.130 / 0.210
G32     39.6           50.0                6.4 +/-    1.09       8.0 +/-    1.09  0.100 / 0.150