PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-09:28:00
G01     48.4           24.1                2.3 +/-    0.77       4.7 +/-    0.77  0.050 / 0.060
G06     179.6          24.8                5.8 +/-    0.90      11.4 +/-    0.90  0.050 / 0.060
G11     44.1           12.6                1.4 +/-    2.35       3.8 +/-    2.35  0.030 / 0.030
G13     250.1          29.2                6.8 +/-    1.78      12.2 +/-    1.78  0.030 / 0.030
G15     281.7          15.6                5.3 +/-    2.36      13.0 +/-    2.36  0.140 / 0.390
G17     334.2          77.5                6.5 +/-    0.56       6.6 +/-    0.56  0.140 / 0.310
G19     252.1          63.3                5.8 +/-    0.96       6.4 +/-    0.96  0.140 / 0.210
G28     56.5           51.6                4.0 +/-    0.48       4.9 +/-    0.48  0.110 / 0.200
G30     150.4          39.1                8.3 +/-    0.73      12.3 +/-    0.73  0.050 / 0.110