PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/30-00:12:50
G05     49.6           17.0                6.2 +/-    0.55      14.8 +/-    0.55  0.030 / 0.040
G10     238.6          14.1               15.2 +/-    2.58      38.7 +/-    2.58  0.030 / 0.040
G13     72.7           37.1                9.4 +/-    0.66      14.4 +/-    0.66  0.190 / 0.330
G15     122.7          54.0               12.4 +/-    0.62      14.9 +/-    0.62  0.140 / 0.280
G16     312.4          12.6                7.4 +/-    1.74      19.4 +/-    1.74  0.120 / 0.270
G18     248.4          43.6               12.7 +/-    1.17      17.5 +/-    1.17  0.100 / 0.200
G20     32.5           61.7                9.6 +/-    0.57      10.8 +/-    0.57  0.060 / 0.070
G21     315.9          49.3                9.2 +/-    1.15      11.7 +/-    1.15  0.050 / 0.070
G26     285.5          19.7                9.0 +/-    0.92      20.0 +/-    0.92  0.110 / 0.180
G29     157.6          66.1               11.1 +/-    0.91      12.0 +/-    0.91  0.060 / 0.210