PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-08:12:40
G01     41.4           16.9                2.5 +/-    0.85       5.9 +/-    0.85  0.060 / 0.110
G06     175.2          38.0                8.0 +/-    0.92      12.0 +/-    0.92  0.070 / 0.140
G13     237.8          22.7                6.4 +/-    2.23      13.1 +/-    2.23  0.090 / 0.170
G15     274.0          12.1                5.0 +/-    1.10      13.3 +/-    1.10  0.120 / 0.170
G17     6.7            69.4                5.9 +/-    0.78       6.2 +/-    0.78  0.110 / 0.160
G19     269.5          66.2                5.2 +/-    0.56       5.6 +/-    0.56  0.170 / 0.190
G24     315.3          22.3                1.5 +/-    1.67       3.2 +/-    1.67  0.110 / 0.370
G28     68.8           48.5                4.7 +/-    0.99       6.0 +/-    0.99  0.080 / 0.300
G30     155.0          29.8                7.9 +/-    1.48      13.8 +/-    1.48  0.080 / 0.080