PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/24-06:57:40
G01     224.5          16.7                4.6 +/-    3.75      11.0 +/-    3.75  0.030 / 0.040
G03     285.6          68.7                3.2 +/-    0.66       3.4 +/-    0.66  0.040 / 0.030
G14     86.2           24.7                4.0 +/-    1.51       8.0 +/-    1.51  0.120 / 0.190
G16     145.5          45.0                4.5 +/-    0.80       6.1 +/-    0.80  0.140 / 0.190
G22     217.0          70.1                3.4 +/-    0.76       3.6 +/-    0.76  0.060 / 0.070
G23     310.4          41.5                4.4 +/-    0.87       6.2 +/-    0.87  0.060 / 0.080
G26     96.7           54.2                2.9 +/-    1.24       3.5 +/-    1.24  0.040 / 0.030
G31     46.1           30.3                2.0 +/-    1.70       3.4 +/-    1.70  0.040 / 0.030