PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/12-14:43:10
G03     196.5          36.5               13.7 +/-    1.25      21.2 +/-    1.25  0.120 / 0.390
G07     274.0          27.2               11.0 +/-    1.98      20.4 +/-    1.98  0.090 / 0.330
G08     154.7          13.2               13.8 +/-    2.55      35.7 +/-    2.55  0.040 / 0.030
G09     318.6          45.9                8.1 +/-    1.10      10.8 +/-    1.10  0.030 / 0.030
G16     52.4           52.8               10.9 +/-    0.53      13.3 +/-    0.53  0.040 / 0.050
G22     179.4          18.3               12.1 +/-    1.93      27.7 +/-    1.93  0.040 / 0.040
G23     27.6           80.1               11.3 +/-    0.66      11.5 +/-    0.66  0.060 / 0.110
G26     43.4           24.2                9.8 +/-    1.27      19.5 +/-    1.27  0.060 / 0.130
G27     117.2          24.6               13.3 +/-    1.40      26.2 +/-    1.40  0.070 / 0.150