PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/27-23:27:40
G05     50.9           12.3                7.2 +/-    0.70      19.1 +/-    0.70  0.080 / 0.160
G10     239.9          16.7               12.3 +/-    1.49      29.3 +/-    1.49  0.100 / 0.180
G13     68.4           35.4                9.0 +/-    0.69      14.2 +/-    0.69  0.110 / 0.420
G15     119.5          55.5               10.0 +/-    0.47      11.8 +/-    0.47  0.110 / 0.530
G16     307.7          14.9                7.2 +/-    2.32      18.0 +/-    2.32  0.120 / 0.260
G20     247.1          21.4                7.6 +/-    1.22      16.1 +/-    1.22  0.110 / 0.300
G21     317.7          50.0                9.6 +/-    1.07      12.2 +/-    1.07  0.050 / 0.070
G26     279.9          20.0                8.5 +/-    1.66      18.6 +/-    1.66  0.060 / 0.070
G29     160.1          67.1                9.4 +/-    1.18      10.1 +/-    1.18  0.030 / 0.040