PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/03-13:57:30
G03     243.4          69.8                8.6 +/-    0.68       9.1 +/-    0.68  0.080 / 0.200
G09     301.2          15.2                5.4 +/-    1.01      13.5 +/-    1.01  0.080 / 0.220
G14     95.3           20.3                8.0 +/-    0.90      17.6 +/-    0.90  0.040 / 0.080
G16     130.1          56.7                9.6 +/-    0.51      11.2 +/-    0.51  0.040 / 0.070
G22     190.4          55.8                9.2 +/-    1.10      10.8 +/-    1.10  0.050 / 0.050
G23     320.6          50.8                7.9 +/-    1.11       9.9 +/-    1.11  0.050 / 0.060
G26     72.6           51.9                6.8 +/-    0.72       8.4 +/-    0.72  0.040 / 0.050
G31     51.0           20.5                5.4 +/-    1.04      11.7 +/-    1.04  0.040 / 0.050