PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/15-10:58:00
G01     309.9          31.8                6.0 +/-    1.21      10.2 +/-    1.21  0.100 / 0.120
G10     102.5          41.3                6.2 +/-    0.45       8.9 +/-    0.45  0.080 / 0.110
G11     284.6          28.0                3.9 +/-    1.54       7.1 +/-    1.54  0.040 / 0.050
G14     350.8          68.4                4.2 +/-    0.98       4.5 +/-    0.98  0.030 / 0.050
G18     279.9          50.6                4.0 +/-    1.04       5.0 +/-    1.04  0.030 / 0.020
G20     118.4          16.4                5.3 +/-    1.42      12.7 +/-    1.42  0.040 / 0.030
G22     310.0          28.2                2.9 +/-    1.63       5.2 +/-    1.63  0.040 / 0.040
G25     84.8           15.0                3.7 +/-    3.79       9.1 +/-    3.79  0.050 / 0.050
G31     170.5          60.2                8.4 +/-    0.44       9.5 +/-    0.44  0.100 / 0.110
G32     24.3           59.4                5.1 +/-    0.92       5.8 +/-    0.92  0.060 / 0.090