PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-09:13:00
G01     48.0           23.7                2.4 +/-    0.54       4.8 +/-    0.54  0.050 / 0.060
G06     179.6          25.2                4.1 +/-    0.96       7.9 +/-    0.96  0.050 / 0.060
G11     44.0           12.2                1.1 +/-    1.75       3.0 +/-    1.75  0.130 / 0.360
G13     249.5          28.8                4.0 +/-    2.19       7.1 +/-    2.19  0.100 / 0.350
G15     281.0          15.5                3.5 +/-    1.81       8.7 +/-    1.81  0.030 / 0.030
G17     336.4          77.2                5.6 +/-    0.53       5.7 +/-    0.53  0.030 / 0.030
G19     253.3          63.8                4.4 +/-    1.04       4.9 +/-    1.04  0.100 / 0.210
G28     57.4           51.3                4.2 +/-    0.92       5.2 +/-    0.92  0.110 / 0.210
G30     150.6          38.3                7.4 +/-    0.80      11.0 +/-    0.80  0.050 / 0.120