PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/14-05:27:30
G07     0.4            65.4                4.0 +/-    0.47       4.4 +/-    0.47  0.040 / 0.100
G08     73.0           50.6                6.3 +/-    0.68       7.8 +/-    0.68  0.040 / 0.100
G09     181.2          58.0                8.9 +/-    0.39      10.2 +/-    0.39  0.030 / 0.030
G11     135.6          21.9                6.0 +/-    2.37      12.7 +/-    2.37  0.030 / 0.030
G23     159.5          28.4                7.9 +/-    1.01      14.4 +/-    1.01  0.040 / 0.030
G27     43.7           21.8                3.1 +/-    1.82       6.6 +/-    1.82  0.030 / 0.040
G28     250.9          40.9                6.1 +/-    2.05       8.8 +/-    2.05  0.050 / 0.040
G30     314.0          45.2                3.4 +/-    0.77       4.6 +/-    0.77  0.060 / 0.040