PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/13-16:43:10
G01     231.9          22.1               12.7 +/-    2.48      26.5 +/-    2.48  0.030 / 0.030
G03     296.3          67.1               12.5 +/-    0.74      13.4 +/-    0.74  0.030 / 0.030
G14     79.1           30.5                9.6 +/-    1.09      16.6 +/-    1.09  0.080 / 0.120
G16     152.0          38.2               14.5 +/-    0.73      21.7 +/-    0.73  0.090 / 0.140
G22     228.3          75.0               12.5 +/-    0.46      12.9 +/-    0.46  0.050 / 0.100
G23     303.3          34.5               10.0 +/-    1.56      16.1 +/-    1.56  0.040 / 0.070
G26     108.4          51.9               13.8 +/-    0.46      17.0 +/-    0.46  0.070 / 0.080
G31     43.1           37.3                8.5 +/-    1.44      12.9 +/-    1.44  0.050 / 0.090
G32     94.3           9.5                10.3 +/-    1.72      28.9 +/-    1.72  0.080 / 0.130