PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/18-15:57:50
G01     305.2          34.4                6.4 +/-    1.31      10.2 +/-    1.31  0.080 / 0.080
G10     108.2          38.9                7.2 +/-    0.85      10.7 +/-    0.85  0.120 / 0.090
G11     282.5          27.1                7.7 +/-    0.52      14.4 +/-    0.52  0.110 / 0.130
G14     357.7          66.4                5.6 +/-    0.36       6.0 +/-    0.36  0.080 / 0.150
G22     310.8          29.0                5.5 +/-    0.76       9.8 +/-    0.76  0.030 / 0.030
G25     80.7           17.3                8.2 +/-    1.86      19.2 +/-    1.86  0.020 / 0.020
G31     162.8          68.0                7.0 +/-    0.64       7.4 +/-    0.64  0.050 / 0.040
G32     39.2           50.3                5.6 +/-    1.29       7.0 +/-    1.29  0.050 / 0.040