PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/18-21:42:30
G01     315.3          24.7                9.0 +/-    1.90      17.6 +/-    1.90  0.140 / 0.260
G10     91.5           48.9                9.8 +/-    1.21      12.5 +/-    1.21  0.130 / 0.280
G11     294.9          26.6                9.2 +/-    1.48      17.4 +/-    1.48  0.080 / 0.170
G14     326.6          70.9                9.4 +/-    0.62       9.9 +/-    0.62  0.130 / 0.210
G18     109.1          22.1               11.4 +/-    1.25      23.9 +/-    1.25  0.140 / 0.170
G22     304.4          15.8                7.1 +/-    2.41      17.4 +/-    2.41  0.150 / 0.260
G25     92.8           12.2               12.5 +/-    2.64      33.1 +/-    2.64  0.030 / 0.040
G31     177.1          48.8               12.0 +/-    0.82      15.3 +/-    0.82  0.030 / 0.050
G32     18.3           62.5                8.5 +/-    0.93       9.5 +/-    0.93  0.040 / 0.030