PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-06:57:40
G07     351.9          63.9                4.0 +/-    0.68       4.5 +/-    0.68  0.060 / 0.090
G08     86.5           53.4                6.1 +/-    0.48       7.4 +/-    0.48  0.060 / 0.080
G09     181.1          62.9                6.5 +/-    1.74       7.2 +/-    1.74  0.030 / 0.050
G11     141.0          19.7                4.5 +/-    1.72      10.0 +/-    1.72  0.030 / 0.070
G23     157.6          31.0                6.6 +/-    0.80      11.4 +/-    0.80  0.080 / 0.110
G27     47.8           26.5                3.4 +/-    1.33       6.5 +/-    1.33  0.070 / 0.110
G28     242.2          29.7                5.8 +/-    1.56      10.2 +/-    1.56  0.060 / 0.110
G30     308.1          40.1                3.7 +/-    1.23       5.3 +/-    1.23  0.050 / 0.090