PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/14-04:27:50
G07     316.3          51.0                4.0 +/-    0.62       5.0 +/-    0.62  0.200 / 0.400
G08     117.8          45.8                7.9 +/-    0.54      10.5 +/-    0.54  0.170 / 0.500
G09     257.6          83.2                7.6 +/-    1.09       7.7 +/-    1.09  0.030 / 0.040
G16     42.6           23.5               -3.8 +/-    2.15      -7.6 +/-    2.15  0.040 / 0.040
G23     149.8          57.5                6.9 +/-    0.84       8.0 +/-    0.84  0.040 / 0.050
G27     68.7           35.9                5.2 +/-    0.51       8.1 +/-    0.51  0.040 / 0.060
G28     228.3          19.4                4.7 +/-    2.59      10.4 +/-    2.59  0.070 / 0.190
G30     291.5          26.8                2.9 +/-    2.30       5.4 +/-    2.30  0.060 / 0.150