PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/15-16:12:30
G01     240.7          29.1               12.3 +/-    1.28      22.0 +/-    1.28  0.050 / 0.090
G14     69.1           36.7               10.6 +/-    0.64      16.3 +/-    0.64  0.070 / 0.110
G16     157.8          28.1               13.8 +/-    1.18      25.1 +/-    1.18  0.060 / 0.050
G22     274.0          76.1               12.0 +/-    0.43      12.3 +/-    0.43  0.040 / 0.040
G23     295.5          27.8                9.1 +/-    2.27      16.6 +/-    2.27  0.050 / 0.030
G26     123.6          46.2               12.2 +/-    0.55      16.2 +/-    0.55  0.040 / 0.030
G31     40.9           46.9                9.1 +/-    0.72      12.0 +/-    0.72  0.040 / 0.040
G32     86.3           15.7               10.1 +/-    2.22      24.7 +/-    2.22  0.070 / 0.040