PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/19-00:58:00
G01     250.9          35.5                9.6 +/-    1.55      15.1 +/-    1.55  0.030 / 0.040
G03     316.1          42.7                6.7 +/-    0.73       9.4 +/-    0.73  0.030 / 0.040
G11     235.9          11.7               10.1 +/-    2.07      27.2 +/-    2.07  0.070 / 0.080
G14     60.2           40.9                6.8 +/-    1.21       9.7 +/-    1.21  0.060 / 0.090
G18     218.9          26.7               11.4 +/-    2.11      21.4 +/-    2.11  0.050 / 0.080
G22     304.9          65.1                6.9 +/-    0.64       7.6 +/-    0.64  0.050 / 0.080
G23     286.1          18.2               10.1 +/-    1.88      23.3 +/-    1.88  0.090 / 0.210
G26     136.2          38.1               11.6 +/-    1.51      17.4 +/-    1.51  0.080 / 0.190
G31     41.1           59.0                6.9 +/-    0.80       7.9 +/-    0.80  0.100 / 0.450
G32     77.6           22.3                5.8 +/-    0.98      12.1 +/-    0.98  0.100 / 0.430