PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/23-05:27:50
G01     235.0          25.1                6.7 +/-    0.97      13.0 +/-    0.97  0.040 / 0.040
G03     307.9          57.2                3.0 +/-    1.80       3.5 +/-    1.80  0.040 / 0.050
G14     75.9           31.8                3.2 +/-    0.64       5.3 +/-    0.64  0.080 / 0.180
G16     151.6          35.4                6.3 +/-    0.82       9.9 +/-    0.82  0.090 / 0.180
G18     209.7          14.8                5.6 +/-    3.02      13.9 +/-    3.02  0.040 / 0.060
G22     261.9          74.9                4.1 +/-    0.70       4.2 +/-    0.70  0.040 / 0.050
G23     298.6          29.0                3.1 +/-    2.32       5.6 +/-    2.32  0.150 / 0.460
G26     113.0          50.0                6.1 +/-    0.84       7.6 +/-    0.84  0.190 / 0.490
G31     42.4           40.1                2.8 +/-    0.80       4.1 +/-    0.80  0.040 / 0.040
G32     91.3           11.3                3.4 +/-    1.27       9.2 +/-    1.27  0.040 / 0.040