PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-06:27:40
G01     235.3          25.3                7.0 +/-    1.77      13.6 +/-    1.77  0.080 / 0.160
G03     308.5          56.2                7.6 +/-    1.79       8.9 +/-    1.79  0.110 / 0.190
G14     76.9           29.8                4.9 +/-    1.47       8.6 +/-    1.47  0.040 / 0.030
G16     156.9          32.5                8.4 +/-    1.79      14.0 +/-    1.79  0.030 / 0.030
G22     260.1          75.9                7.3 +/-    0.99       7.5 +/-    0.99  0.150 / 0.150
G23     297.7          27.9                5.7 +/-    2.18      10.5 +/-    2.18  0.110 / 0.180
G26     121.3          49.3                7.3 +/-    0.81       9.3 +/-    0.81  0.060 / 0.100
G31     41.0           44.0                5.7 +/-    1.03       7.8 +/-    1.03  0.080 / 0.110
G32     89.6           14.7                5.3 +/-    2.21      13.3 +/-    2.21  0.080 / 0.120