PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/18-15:58:10
G01     304.8          34.6                7.3 +/-    1.15      11.6 +/-    1.15  0.060 / 0.140
G10     108.7          38.5                6.8 +/-    0.92      10.2 +/-    0.92  0.070 / 0.150
G11     282.0          27.1                5.8 +/-    1.64      10.7 +/-    1.64  0.080 / 0.190
G14     358.7          66.2                5.6 +/-    0.54       6.0 +/-    0.54  0.080 / 0.170
G22     310.9          29.4                4.8 +/-    1.50       8.5 +/-    1.50  0.030 / 0.040
G25     80.2           17.4                6.8 +/-    1.09      16.0 +/-    1.09  0.030 / 0.030
G31     162.2          68.5                7.6 +/-    0.68       8.1 +/-    0.68  0.060 / 0.050
G32     39.7           50.0                7.6 +/-    1.23       9.6 +/-    1.23  0.060 / 0.040