PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-06:28:10
G01     234.9          25.0                7.4 +/-    1.99      14.4 +/-    1.99  0.080 / 0.140
G03     308.1          56.6                6.0 +/-    0.53       7.1 +/-    0.53  0.060 / 0.130
G14     77.4           29.5                5.0 +/-    1.18       8.9 +/-    1.18  0.030 / 0.040
G16     156.7          32.9                8.9 +/-    0.69      14.6 +/-    0.69  0.040 / 0.040
G22     258.1          75.9                7.5 +/-    1.14       7.7 +/-    1.14  0.080 / 0.130
G23     298.0          28.1                4.3 +/-    0.93       7.8 +/-    0.93  0.090 / 0.120
G26     120.7          49.6                7.9 +/-    0.74      10.0 +/-    0.74  0.070 / 0.150
G31     41.1           43.6                4.3 +/-    1.06       5.9 +/-    1.06  0.080 / 0.160
G32     90.0           14.4                4.0 +/-    1.65      10.1 +/-    1.65  0.060 / 0.130