PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-12:43:00
G03     220.9          63.2                6.6 +/-    1.56       7.3 +/-    1.56  0.160 / 0.390
G07     252.2          10.9                1.4 +/-   18.81       3.7 +/-   18.81  0.120 / 0.390
G09     307.2          23.4                4.8 +/-    2.67       9.8 +/-    2.67  0.090 / 0.510
G14     103.7          13.8                7.2 +/-    1.78      18.5 +/-    1.78  0.100 / 0.450
G16     107.7          62.8                8.3 +/-    0.98       9.3 +/-    0.98  0.050 / 0.070
G22     187.5          45.8                7.3 +/-    2.43       9.7 +/-    2.43  0.070 / 0.090
G23     328.6          57.9                5.1 +/-    0.94       5.9 +/-    0.94  0.030 / 0.060
G26     58.3           46.0                5.3 +/-    1.15       7.1 +/-    1.15  0.040 / 0.040
G31     56.5           12.7                6.2 +/-    1.56      16.4 +/-    1.56  0.050 / 0.050