PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/26-12:27:50
G01     306.9          34.0                3.2 +/-    1.25       5.2 +/-    1.25  0.080 / 0.090
G10     106.4          38.7                4.0 +/-    0.41       6.0 +/-    0.41  0.070 / 0.090
G11     280.2          28.1                5.6 +/-    1.04      10.2 +/-    1.04  0.040 / 0.030
G14     359.7          66.6                3.3 +/-    0.64       3.5 +/-    0.64  0.040 / 0.040
G18     273.0          51.2                4.0 +/-    0.69       4.9 +/-    0.69  0.040 / 0.050
G20     120.8          13.6                2.9 +/-    1.22       7.5 +/-    1.22  0.040 / 0.050
G22     311.0          29.9                4.1 +/-    1.41       7.3 +/-    1.41  0.050 / 0.050
G25     80.6           16.0                2.8 +/-    1.52       6.7 +/-    1.52  0.050 / 0.050
G31     169.3          63.8                6.3 +/-    0.47       7.0 +/-    0.47  0.130 / 0.110
G32     30.5           56.1                3.5 +/-    0.73       4.1 +/-    0.73  0.110 / 0.090