PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/17-11:28:10
G01     39.3           13.0                1.2 +/-    0.89       3.0 +/-    0.89  0.050 / 0.090
G02     199.5          12.1                3.5 +/-    5.98       9.4 +/-    5.98  0.050 / 0.080
G06     175.9          42.1                5.5 +/-    0.96       7.7 +/-    0.96  0.150 / 0.290
G13     235.8          19.3                3.5 +/-    1.01       7.8 +/-    1.01  0.100 / 0.220
G15     267.5          11.0                2.6 +/-    3.88       7.0 +/-    3.88  0.070 / 0.400
G17     13.9           65.5                2.5 +/-    0.36       2.7 +/-    0.36  0.110 / 0.440
G19     296.9          71.8                3.5 +/-    1.24       3.6 +/-    1.24  0.040 / 0.040
G24     315.7          21.3                2.4 +/-    1.64       5.2 +/-    1.64  0.030 / 0.030
G28     77.9           44.2                3.1 +/-    0.66       4.3 +/-    0.66  0.090 / 0.130
G30     155.7          23.8                3.9 +/-    1.05       7.8 +/-    1.05  0.110 / 0.140