PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-13:12:30
G01     223.2          13.8                6.4 +/-   15.43      16.3 +/-   15.43  0.120 / 0.210
G03     269.1          70.6                6.7 +/-    0.43       7.1 +/-    0.43  0.110 / 0.170
G09     296.7          10.2              -16.4 +/-    8.04     -45.4 +/-    8.04  0.050 / 0.060
G14     88.8           25.2                7.0 +/-    1.22      13.7 +/-    1.22  0.060 / 0.060
G16     139.9          50.4                8.2 +/-    0.83      10.3 +/-    0.83  0.060 / 0.080
G22     196.9          63.8                7.7 +/-    1.08       8.5 +/-    1.08  0.050 / 0.070
G23     314.1          44.9                5.1 +/-    0.84       6.8 +/-    0.84  0.030 / 0.040
G26     85.3           53.6                6.6 +/-    0.51       7.9 +/-    0.51  0.030 / 0.040
G31     47.7           26.3                5.8 +/-    1.08      11.1 +/-    1.08  0.270 / 0.460