PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-09:12:40
G03     252.6          71.0                5.1 +/-    0.67       5.3 +/-    0.67  0.040 / 0.050
G09     299.2          12.8                2.8 +/-    8.82       7.5 +/-    8.82  0.040 / 0.040
G14     94.3           18.4                3.0 +/-    0.97       6.8 +/-    0.97  0.040 / 0.040
G16     137.0          53.2                6.4 +/-    0.76       7.8 +/-    0.76  0.040 / 0.040
G22     199.8          61.1                6.6 +/-    0.82       7.4 +/-    0.82  0.100 / 0.270
G23     316.9          47.3                4.5 +/-    1.24       5.9 +/-    1.24  0.140 / 0.290
G26     80.3           54.0                4.5 +/-    0.49       5.5 +/-    0.49  0.060 / 0.060
G31     49.8           23.1                2.5 +/-    2.16       5.1 +/-    2.16  0.050 / 0.070