PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/06-07:42:40
G07     336.2          59.5                5.4 +/-    0.68       6.1 +/-    0.68  0.040 / 0.050
G08     104.9          52.1                7.3 +/-    0.45       9.0 +/-    0.45  0.040 / 0.040
G09     189.5          73.8                5.7 +/-    0.57       6.0 +/-    0.57  0.090 / 0.290
G11     146.8          13.6                3.4 +/-    2.46       8.9 +/-    2.46  0.090 / 0.330
G23     154.7          40.1                6.4 +/-    0.80       9.3 +/-    0.80  0.050 / 0.080
G27     55.9           32.0                3.5 +/-    0.61       6.0 +/-    0.61  0.050 / 0.070
G28     235.1          22.7                5.4 +/-    2.01      11.2 +/-    2.01  0.030 / 0.040
G30     301.1          34.2                3.8 +/-    1.59       6.1 +/-    1.59  0.030 / 0.040