PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-06:57:40
G01     110.9          23.3                6.1 +/-    1.95      12.4 +/-    1.95  0.060 / 0.050
G07     100.7          60.1                6.4 +/-    1.46       7.3 +/-    1.46  0.030 / 0.050
G08     42.3           22.8                1.8 +/-    1.96       3.6 +/-    1.96  0.030 / 0.040
G09     175.5          17.3                4.3 +/-    1.41      10.1 +/-    1.41  0.040 / 0.030
G11     94.4           41.5                6.0 +/-    0.91       8.5 +/-    0.91  0.050 / 0.070
G13     313.6          24.6                1.4 +/-    1.78       2.8 +/-    1.78  0.080 / 0.090
G17     203.9          35.4                6.6 +/-    1.24      10.3 +/-    1.24  0.190 / 0.150
G28     311.2          60.3                4.0 +/-    1.14       4.6 +/-    1.14  0.140 / 0.160
G30     9.8            75.5                5.5 +/-    0.65       5.7 +/-    0.65  0.080 / 0.160