PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/12-18:42:30
G01     231.7          22.0               12.8 +/-    2.45      26.8 +/-    2.45  0.030 / 0.030
G03     298.2          65.5               11.0 +/-    0.90      11.9 +/-    0.90  0.030 / 0.040
G14     79.8           29.6               10.2 +/-    1.73      18.0 +/-    1.73  0.080 / 0.070
G16     153.1          37.8               13.5 +/-    1.09      20.5 +/-    1.09  0.070 / 0.080
G22     233.9          75.0               11.7 +/-    0.83      12.1 +/-    0.83  0.080 / 0.060
G23     302.7          33.5                8.5 +/-    1.48      13.8 +/-    1.48  0.050 / 0.080
G26     109.5          52.1               11.3 +/-    0.49      14.0 +/-    0.49  0.090 / 0.160
G31     42.9           38.0                7.6 +/-    1.35      11.4 +/-    1.35  0.090 / 0.120
G32     94.3           9.8                11.7 +/-    2.96      32.7 +/-    2.96  0.050 / 0.030