PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-09:13:10
G07     338.1          60.1                4.5 +/-    0.82       5.1 +/-    0.82  0.050 / 0.090
G08     106.3          52.5                5.8 +/-    0.47       7.1 +/-    0.47  0.040 / 0.080
G09     191.0          73.8                3.7 +/-    0.58       3.9 +/-    0.58  0.110 / 0.370
G11     146.1          14.0                2.2 +/-    2.95       5.5 +/-    2.95  0.110 / 0.270
G23     154.5          38.6                5.5 +/-    1.12       8.2 +/-    1.12  0.140 / 0.600
G27     55.6           31.9                3.0 +/-    0.79       5.0 +/-    0.79  0.130 / 0.490
G28     235.5          23.4                5.0 +/-    1.77      10.2 +/-    1.77  0.040 / 0.050
G30     302.0          35.3                3.2 +/-    1.49       5.1 +/-    1.49  0.030 / 0.050