PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-05:12:30
G03     238.7          67.5                8.6 +/-    0.39       9.2 +/-    0.39  0.070 / 0.050
G09     305.9          23.7                5.7 +/-    1.99      11.5 +/-    1.99  0.060 / 0.060
G14     100.5          14.3                6.3 +/-    1.68      15.9 +/-    1.68  0.110 / 0.320
G16     120.1          60.0                8.6 +/-    0.52       9.8 +/-    0.52  0.100 / 0.350
G22     195.5          54.4                8.7 +/-    1.12      10.4 +/-    1.12  0.060 / 0.070
G23     319.7          49.5                5.6 +/-    0.84       7.1 +/-    0.84  0.060 / 0.060
G26     66.0           50.1                6.5 +/-    0.69       8.2 +/-    0.69  0.040 / 0.050
G31     53.2           17.8                3.4 +/-    1.03       7.9 +/-    1.03  0.050 / 0.060