PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-09:12:50
G08     268.4          17.0                6.8 +/-    1.77      16.1 +/-    1.77  0.040 / 0.060
G10     64.9           57.6                4.0 +/-    0.60       4.7 +/-    0.60  0.040 / 0.060
G11     311.0          17.4                2.1 +/-    5.16       5.0 +/-    5.16  0.030 / 0.030
G14     265.5          63.4                4.1 +/-    0.75       4.5 +/-    0.75  0.040 / 0.040
G18     311.6          32.7                3.5 +/-    1.70       5.8 +/-    1.70  0.190 / 0.240
G20     105.4          13.8                4.6 +/-    1.77      11.7 +/-    1.77  0.210 / 0.290
G21     155.1          13.5                4.7 +/-    2.11      12.0 +/-    2.11  0.130 / 0.260
G27     229.9          14.3                6.1 +/-    1.56      15.5 +/-    1.56  0.120 / 0.260
G31     176.2          34.4                6.3 +/-    1.06      10.1 +/-    1.06  0.170 / 0.370
G32     351.9          72.4                4.8 +/-    0.59       5.0 +/-    0.59  0.120 / 0.380