PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-03:57:40
G08     266.7          18.1                7.1 +/-    2.74      16.3 +/-    2.74  0.310 / 0.260
G10     61.9           58.2                4.3 +/-    0.83       5.0 +/-    0.83  0.240 / 0.220
G11     311.1          17.6               -1.3 +/-   14.77      -3.0 +/-   14.77  0.210 / 0.370
G14     264.7          64.6                6.1 +/-    0.76       6.6 +/-    0.76  0.210 / 0.440
G18     312.3          31.9                4.5 +/-    1.56       7.5 +/-    1.56  0.240 / 0.270
G20     81.5           54.8                6.3 +/-    1.66       7.5 +/-    1.66  0.170 / 0.230
G21     155.1          16.0                5.5 +/-    2.51      13.3 +/-    2.51  0.040 / 0.050
G27     231.7          15.7                8.5 +/-    2.41      20.7 +/-    2.41  0.040 / 0.050
G31     176.6          32.5                7.6 +/-    1.76      12.7 +/-    1.76  0.100 / 0.190
G32     347.0          73.5                4.6 +/-    0.42       4.8 +/-    0.42  0.110 / 0.160