PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-07:27:40
G03     231.0          65.4                7.4 +/-    0.72       8.1 +/-    0.72  0.050 / 0.050
G09     307.0          24.2                4.1 +/-    0.97       8.1 +/-    0.97  0.060 / 0.060
G14     103.1          12.5                3.5 +/-    2.92       9.2 +/-    2.92  0.120 / 0.350
G16     110.1          61.8                6.1 +/-    0.40       6.9 +/-    0.40  0.110 / 0.370
G22     193.2          50.8                8.4 +/-    0.47      10.4 +/-    0.47  0.040 / 0.050
G23     322.9          52.8                4.1 +/-    0.37       5.0 +/-    0.37  0.060 / 0.050
G26     60.2           47.1                4.0 +/-    0.68       5.3 +/-    0.68  0.040 / 0.040
G31     55.5           14.0                1.5 +/-    1.88       3.8 +/-    1.88  0.040 / 0.040