PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-06:43:00
G03     232.0          65.4                5.1 +/-    1.18       5.5 +/-    1.18  0.050 / 0.050
G09     307.2          24.6                4.0 +/-    1.75       8.0 +/-    1.75  0.040 / 0.050
G14     103.3          12.1                4.0 +/-    3.50      10.6 +/-    3.50  0.040 / 0.040
G16     109.8          61.8                6.7 +/-    0.62       7.5 +/-    0.62  0.050 / 0.050
G22     194.0          51.2                7.4 +/-    0.52       9.2 +/-    0.52  0.170 / 0.440
G23     322.4          52.3                4.1 +/-    0.39       5.1 +/-    0.39  0.100 / 0.430
G26     60.2           47.0                5.4 +/-    0.96       7.0 +/-    0.96  0.040 / 0.050
G31     55.4           14.0                2.4 +/-    2.50       6.0 +/-    2.50  0.040 / 0.040