PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-14:28:10
G05     48.0           19.9                3.9 +/-    0.69       8.6 +/-    0.69  0.050 / 0.160
G10     235.7          14.1                3.8 +/-   12.10       9.7 +/-   12.10  0.060 / 0.170
G13     74.9           35.1                6.3 +/-    0.51      10.0 +/-    0.51  0.120 / 0.360
G15     120.1          52.6                7.9 +/-    0.73       9.7 +/-    0.73  0.160 / 0.370
G16     313.6          12.8                3.9 +/-    1.64      10.2 +/-    1.64  0.120 / 0.090
G20     249.2          39.5                8.2 +/-    1.21      12.1 +/-    1.21  0.100 / 0.070
G21     313.8          46.8                5.4 +/-    1.09       7.1 +/-    1.09  0.190 / 0.310
G25     199.6          11.8                5.1 +/-    2.15      13.6 +/-    2.15  0.220 / 0.340
G26     288.1          20.0                5.6 +/-    1.64      12.4 +/-    1.64  0.030 / 0.020
G29     152.9          74.1                9.5 +/-    1.01       9.9 +/-    1.01  0.030 / 0.030