PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-17:58:00
G01     252.9          36.0                9.4 +/-    1.12      14.7 +/-    1.12  0.040 / 0.100
G03     316.1          45.2                9.1 +/-    0.83      12.2 +/-    0.83  0.050 / 0.080
G11     240.8          13.5               10.4 +/-    3.69      26.8 +/-    3.69  0.040 / 0.040
G14     57.8           42.7                8.5 +/-    1.02      11.8 +/-    1.02  0.030 / 0.050
G22     305.7          66.1                9.4 +/-    1.17      10.1 +/-    1.17  0.040 / 0.040
G23     286.1          19.5                9.3 +/-    1.94      20.8 +/-    1.94  0.030 / 0.040
G25     41.2           11.4                8.5 +/-    2.11      23.0 +/-    2.11  0.070 / 0.100
G26     137.2          37.0               12.3 +/-    0.94      18.9 +/-    0.94  0.060 / 0.120
G31     41.3           59.4                8.5 +/-    0.56       9.7 +/-    0.56  0.050 / 0.060
G32     76.5           23.2                8.0 +/-    1.18      16.3 +/-    1.18  0.030 / 0.050