PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-06:43:10
G07     350.2          63.5                4.9 +/-    0.60       5.4 +/-    0.60  0.040 / 0.030
G08     87.7           53.3                6.3 +/-    0.65       7.7 +/-    0.65  0.030 / 0.040
G09     181.2          63.7                6.1 +/-    0.94       6.7 +/-    0.94  0.080 / 0.180
G11     141.6          19.2                5.0 +/-    2.08      11.3 +/-    2.08  0.060 / 0.100
G23     157.5          31.9                5.5 +/-    1.28       9.3 +/-    1.28  0.030 / 0.030
G27     48.3           27.0                3.0 +/-    1.87       5.6 +/-    1.87  0.030 / 0.030
G28     241.5          29.1                5.7 +/-    1.74      10.1 +/-    1.74  0.050 / 0.090
G30     307.4          39.4                3.1 +/-    0.98       4.6 +/-    0.98  0.050 / 0.090