PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-17:28:10
G01     220.0          10.6               11.7 +/-    2.34      32.1 +/-    2.34  0.040 / 0.030
G03     244.2          71.1                8.6 +/-    0.54       9.1 +/-    0.54  0.040 / 0.040
G09     299.4          12.7                9.9 +/-    2.74      26.1 +/-    2.74  0.110 / 0.230
G14     93.9           20.3                8.6 +/-    1.00      18.7 +/-    1.00  0.130 / 0.230
G16     136.5          54.1               12.9 +/-    0.65      15.5 +/-    0.65  0.150 / 0.160
G22     196.2          60.4               10.2 +/-    0.46      11.5 +/-    0.46  0.110 / 0.180
G23     316.1          46.2                9.4 +/-    0.86      12.5 +/-    0.86  0.040 / 0.050
G31     49.5           23.4                6.3 +/-    1.88      12.7 +/-    1.88  0.030 / 0.040