PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-06:27:30
G03     250.0          68.7                4.7 +/-    1.56       5.0 +/-    1.56  0.040 / 0.050
G09     303.3          19.5                2.6 +/-    1.49       5.8 +/-    1.49  0.040 / 0.040
G14     97.9           16.4                4.2 +/-    2.49      10.1 +/-    2.49  0.040 / 0.060
G16     124.0          58.1                7.7 +/-    0.34       8.8 +/-    0.34  0.040 / 0.060
G22     198.8          58.2                6.4 +/-    0.79       7.4 +/-    0.79  0.150 / 0.270
G23     317.2          46.9                3.8 +/-    0.52       5.0 +/-    0.52  0.110 / 0.240
G26     69.3           50.8                6.4 +/-    0.93       8.0 +/-    0.93  0.040 / 0.040
G31     52.0           19.0                3.3 +/-    2.97       7.6 +/-    2.97  0.030 / 0.050