PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-12:27:40
G03     240.8          69.0                7.4 +/-    0.61       7.9 +/-    0.61  0.090 / 0.220
G09     302.4          17.0                6.0 +/-    3.53      14.3 +/-    3.53  0.090 / 0.230
G14     96.8           19.4                7.7 +/-    1.11      17.2 +/-    1.11  0.050 / 0.040
G16     126.2          58.1                9.7 +/-    0.69      11.2 +/-    0.69  0.050 / 0.050
G22     191.4          54.9                7.4 +/-    0.44       8.9 +/-    0.44  0.030 / 0.040
G23     321.0          51.0                6.9 +/-    1.44       8.6 +/-    1.44  0.030 / 0.040
G26     69.5           51.0                6.8 +/-    0.77       8.4 +/-    0.77  0.060 / 0.040
G31     52.0           19.0                5.7 +/-    1.95      12.8 +/-    1.95  0.050 / 0.050