PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-17:42:50
G01     254.3          36.6                9.0 +/-    0.81      13.9 +/-    0.81  0.040 / 0.050
G03     316.3          44.2                7.3 +/-    1.72       9.9 +/-    1.72  0.030 / 0.050
G11     242.0          14.2               10.3 +/-    1.16      26.1 +/-    1.16  0.040 / 0.040
G14     56.4           43.5                7.9 +/-    0.97      10.9 +/-    0.97  0.030 / 0.040
G22     307.0          65.1                6.9 +/-    1.08       7.6 +/-    1.08  0.110 / 0.220
G23     285.2          18.8                9.1 +/-    0.95      20.6 +/-    0.95  0.160 / 0.230
G25     42.2           12.0                6.7 +/-    1.00      18.0 +/-    1.00  0.050 / 0.090
G26     138.1          36.0               11.7 +/-    0.61      18.2 +/-    0.61  0.050 / 0.100
G31     41.7           60.6                7.9 +/-    0.26       8.9 +/-    0.26  0.060 / 0.120
G32     75.5           23.9                8.8 +/-    0.39      17.6 +/-    0.39  0.070 / 0.100