PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-07:13:00
G03     230.0          65.0                5.0 +/-    1.05       5.4 +/-    1.05  0.040 / 0.070
G07     251.4          10.6               -2.1 +/-   16.11      -5.7 +/-   16.11  0.040 / 0.060
G09     307.4          24.8                2.2 +/-    1.81       4.4 +/-    1.81  0.080 / 0.410
G14     103.6          11.9                3.6 +/-    2.72       9.5 +/-    2.72  0.070 / 0.330
G16     108.6          62.1                6.1 +/-    0.68       6.8 +/-    0.68  0.120 / 0.490
G22     193.2          50.3                6.4 +/-    1.10       8.0 +/-    1.10  0.130 / 0.430
G23     323.2          53.1                5.3 +/-    0.67       6.4 +/-    0.67  0.060 / 0.060
G26     59.5           46.6                4.3 +/-    0.64       5.7 +/-    0.64  0.050 / 0.070
G31     55.8           13.6                2.6 +/-    0.92       6.6 +/-    0.92  0.040 / 0.040