PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/25-09:57:40
G10     92.2           47.0                6.0 +/-    0.66       7.8 +/-    0.66  0.120 / 0.410
G11     294.1          26.5                4.4 +/-    0.88       8.4 +/-    0.88  0.130 / 0.410
G14     326.1          71.2                5.2 +/-    1.11       5.5 +/-    1.11  0.120 / 0.260
G18     293.5          47.4                5.3 +/-    1.14       6.9 +/-    1.14  0.120 / 0.240
G20     112.3          22.8                5.0 +/-    1.67      10.3 +/-    1.67  0.050 / 0.050
G22     306.1          20.4                5.0 +/-    1.80      11.0 +/-    1.80  0.050 / 0.050
G25     93.3           11.8                3.6 +/-    2.26       9.8 +/-    2.26  0.040 / 0.050
G31     174.0          50.8                8.4 +/-    0.65      10.5 +/-    0.65  0.040 / 0.060
G32     12.6           64.6                3.0 +/-    1.02       3.3 +/-    1.02  0.070 / 0.220