PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-04:12:40
G08     288.8          22.9                9.7 +/-    1.09      19.9 +/-    1.09  0.100 / 0.130
G10     17.8           63.0                7.0 +/-    0.38       7.7 +/-    0.38  0.100 / 0.140
G14     233.8          47.8                9.1 +/-    1.64      11.9 +/-    1.64  0.070 / 0.090
G18     317.7          13.5                8.1 +/-    1.38      20.9 +/-    1.38  0.050 / 0.090
G20     57.7           58.7                8.6 +/-    0.30       9.8 +/-    0.30  0.080 / 0.120
G21     148.9          36.6                8.2 +/-    1.02      12.7 +/-    1.02  0.070 / 0.120
G24     51.3           22.6                6.9 +/-    0.56      14.4 +/-    0.56  0.040 / 0.090
G27     249.6          29.2               10.2 +/-    1.84      18.1 +/-    1.84  0.040 / 0.120
G31     181.5          12.0                7.8 +/-    4.78      20.8 +/-    4.78  0.030 / 0.030
G32     260.2          73.1                8.0 +/-    0.66       8.3 +/-    0.66  0.040 / 0.030