PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-08:42:50
G01     110.9          22.0                6.4 +/-    0.69      13.4 +/-    0.69  0.040 / 0.030
G07     98.5           60.7                6.9 +/-    0.87       7.8 +/-    0.87  0.030 / 0.030
G08     43.2           27.5                3.3 +/-    0.83       6.1 +/-    0.83  0.030 / 0.040
G09     175.1          18.5                6.2 +/-    1.87      14.3 +/-    1.87  0.030 / 0.040
G11     98.7           43.6                7.6 +/-    0.94      10.5 +/-    0.94  0.100 / 0.110
G13     313.1          26.1                4.0 +/-    3.83       7.7 +/-    3.83  0.060 / 0.110
G17     203.4          29.7                8.9 +/-    2.62      15.6 +/-    2.62  0.080 / 0.190
G18     85.8           23.1                4.0 +/-    1.11       8.2 +/-    1.11  0.060 / 0.200
G28     294.2          55.6                5.7 +/-    0.94       6.7 +/-    0.94  0.100 / 0.220
G30     356.4          73.6                7.3 +/-    0.42       7.5 +/-    0.42  0.090 / 0.210