PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/13-05:58:00
G03     191.0          18.6                5.5 +/-    2.14      12.5 +/-    2.14  0.030 / 0.040
G07     295.8          41.1                3.0 +/-    1.19       4.3 +/-    1.19  0.020 / 0.040
G08     136.3          32.2                6.1 +/-    1.67      10.3 +/-    1.67  0.070 / 0.110
G09     319.8          68.7                2.5 +/-    1.08       2.6 +/-    1.08  0.060 / 0.120
G16     42.1           39.4                3.8 +/-    0.77       5.7 +/-    0.77  0.040 / 0.080
G23     125.8          77.5                3.1 +/-    1.01       3.1 +/-    1.01  0.040 / 0.080
G26     44.0           12.3                1.9 +/-    0.91       4.9 +/-    0.91  0.040 / 0.080
G27     92.6           35.1                5.0 +/-    0.68       7.9 +/-    0.68  0.040 / 0.090
G30     276.5          14.6                4.5 +/-    1.08      11.4 +/-    1.08  0.030 / 0.030