PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/10-07:27:30
G07     337.0          59.8                4.1 +/-    0.80       4.7 +/-    0.80  0.070 / 0.090
G08     103.5          52.3                5.7 +/-    0.77       7.0 +/-    0.77  0.090 / 0.100
G09     188.2          73.0                5.5 +/-    0.88       5.7 +/-    0.88  0.120 / 0.100
G11     146.5          14.0                4.7 +/-    1.63      12.1 +/-    1.63  0.110 / 0.090
G23     155.0          39.6                5.6 +/-    0.88       8.2 +/-    0.88  0.030 / 0.020
G27     55.2           31.7                3.9 +/-    1.73       6.6 +/-    1.73  0.030 / 0.030
G28     235.5          23.1                5.5 +/-    1.80      11.1 +/-    1.80  0.040 / 0.040
G30     301.5          34.4                3.5 +/-    1.17       5.7 +/-    1.17  0.040 / 0.040