PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-15:28:10
G01     228.1          18.7               11.4 +/-    2.04      25.8 +/-    2.04  0.080 / 0.170
G03     286.1          69.4                8.5 +/-    0.57       9.0 +/-    0.57  0.080 / 0.150
G14     83.3           28.2                7.2 +/-    1.44      13.2 +/-    1.44  0.040 / 0.050
G16     147.7          43.4               12.3 +/-    1.08      17.0 +/-    1.08  0.030 / 0.050
G22     209.3          71.0               11.2 +/-    1.22      11.8 +/-    1.22  0.050 / 0.090
G23     307.7          38.8                8.0 +/-    1.56      11.9 +/-    1.56  0.040 / 0.080
G26     98.9           53.4                9.7 +/-    0.41      11.8 +/-    0.41  0.080 / 0.080
G31     44.9           32.5                5.9 +/-    0.82       9.8 +/-    0.82  0.060 / 0.100