PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/08-11:27:50
G01     309.4          32.1                7.2 +/-    1.33      12.1 +/-    1.33  0.100 / 0.110
G10     103.1          40.9                5.2 +/-    0.96       7.5 +/-    0.96  0.090 / 0.130
G11     283.8          28.0                4.9 +/-    1.20       8.9 +/-    1.20  0.060 / 0.050
G14     352.4          68.1                4.6 +/-    0.71       4.9 +/-    0.71  0.050 / 0.050
G18     278.7          50.8                5.7 +/-    0.89       7.1 +/-    0.89  0.040 / 0.020
G20     118.8          15.9                4.5 +/-    1.28      10.9 +/-    1.28  0.040 / 0.030
G22     310.1          28.2                3.2 +/-    1.61       5.9 +/-    1.61  0.040 / 0.040
G25     84.0           15.2                2.9 +/-    3.08       7.1 +/-    3.08  0.040 / 0.040
G31     170.5          60.7                7.3 +/-    0.55       8.2 +/-    0.55  0.060 / 0.100
G32     25.6           58.7                5.1 +/-    0.61       5.9 +/-    0.61  0.060 / 0.110