PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-05:28:10
G07     10.0           67.0                5.1 +/-    0.82       5.5 +/-    0.82  0.050 / 0.110
G08     66.8           49.0                5.1 +/-    0.75       6.6 +/-    0.75  0.060 / 0.120
G09     180.3          53.4                7.9 +/-    2.10       9.6 +/-    2.10  0.050 / 0.060
G11     132.4          24.6                8.1 +/-    1.26      16.0 +/-    1.26  0.050 / 0.050
G23     160.2          24.1                6.1 +/-    2.38      12.2 +/-    2.38  0.030 / 0.030
G28     255.6          43.8                7.2 +/-    2.22       9.9 +/-    2.22  0.030 / 0.050
G30     317.8          48.3                3.6 +/-    0.52       4.6 +/-    0.52  0.040 / 0.050