PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-16:28:00
G01     304.6          34.7                7.9 +/-    1.69      12.6 +/-    1.69  0.060 / 0.060
G10     108.9          38.4                8.0 +/-    0.69      12.0 +/-    0.69  0.050 / 0.050
G11     281.5          27.3                7.2 +/-    1.41      13.4 +/-    1.41  0.070 / 0.120
G14     359.6          66.0                6.7 +/-    0.70       7.2 +/-    0.70  0.070 / 0.140
G22     310.9          29.2                7.2 +/-    1.76      12.7 +/-    1.76  0.030 / 0.040
G25     80.0           17.5                9.0 +/-    0.78      21.2 +/-    0.78  0.030 / 0.040
G31     162.6          68.5               10.0 +/-    0.75      10.6 +/-    0.75  0.050 / 0.090
G32     39.7           50.0                7.9 +/-    0.72      10.0 +/-    0.72  0.050 / 0.090