PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/24-07:13:10
G03     255.6          68.7                5.3 +/-    1.31       5.6 +/-    1.31  0.040 / 0.080
G09     302.8          19.1                1.7 +/-    2.21       3.8 +/-    2.21  0.040 / 0.070
G14     98.0           14.9                5.1 +/-    1.18      12.7 +/-    1.18  0.030 / 0.070
G16     136.0          56.3                8.0 +/-    0.67       9.4 +/-    0.67  0.040 / 0.060
G22     197.2          59.2                5.4 +/-    2.11       6.2 +/-    2.11  0.120 / 0.390
G23     315.6          45.0                3.1 +/-    1.60       4.2 +/-    1.60  0.150 / 0.380
G26     77.6           54.6                6.7 +/-    1.27       8.1 +/-    1.27  0.040 / 0.060
G31     50.1           23.2                1.2 +/-    1.77       2.4 +/-    1.77  0.040 / 0.060