PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-06:57:30
G07     351.9          63.9                4.6 +/-    0.69       5.0 +/-    0.69  0.040 / 0.030
G08     86.5           53.4                6.0 +/-    0.63       7.3 +/-    0.63  0.040 / 0.030
G09     181.1          62.9                5.5 +/-    0.80       6.1 +/-    0.80  0.090 / 0.150
G11     141.0          19.7                4.8 +/-    1.39      10.7 +/-    1.39  0.170 / 0.100
G23     157.6          31.0                5.2 +/-    1.10       8.9 +/-    1.10  0.030 / 0.030
G27     47.8           26.5                3.0 +/-    1.78       5.6 +/-    1.78  0.030 / 0.030
G28     242.2          29.7                4.9 +/-    1.42       8.7 +/-    1.42  0.040 / 0.040
G30     308.1          40.1                3.4 +/-    1.05       4.9 +/-    1.05  0.040 / 0.040