PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-16:42:50
G01     301.5          36.4                7.8 +/-    2.50      12.0 +/-    2.50  0.080 / 0.080
G03     308.9          12.2                6.5 +/-    6.48      17.2 +/-    6.48  0.080 / 0.120
G10     111.9          36.1                8.8 +/-    0.94      13.6 +/-    0.94  0.030 / 0.020
G11     277.9          27.2                7.5 +/-    2.14      13.9 +/-    2.14  0.030 / 0.030
G14     6.2            64.5                6.8 +/-    0.52       7.5 +/-    0.52  0.040 / 0.040
G22     311.8          31.7                7.2 +/-    1.73      12.2 +/-    1.73  0.040 / 0.040
G25     76.8           18.2                7.0 +/-    1.79      16.1 +/-    1.79  0.090 / 0.160
G31     157.8          71.7                8.9 +/-    0.47       9.3 +/-    0.47  0.130 / 0.150
G32     42.8           47.8                6.1 +/-    1.39       7.9 +/-    1.39  0.340 / 0.420