PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/08-15:12:40
G02     349.5          77.8                7.2 +/-    0.48       7.4 +/-    0.48  0.070 / 0.090
G05     166.7          33.1               10.3 +/-    1.10      16.9 +/-    1.10  0.090 / 0.110
G06     41.8           40.4                6.1 +/-    0.66       8.8 +/-    0.66  0.030 / 0.040
G12     308.4          72.1                6.8 +/-    0.41       7.1 +/-    0.41  0.030 / 0.040
G19     78.0           24.6                9.3 +/-    0.79      18.4 +/-    0.79  0.140 / 0.210
G24     228.5          21.9               11.7 +/-    1.85      24.6 +/-    1.85  0.190 / 0.210
G25     316.7          32.8                8.2 +/-    2.34      13.6 +/-    2.34  0.050 / 0.090
G29     289.5          13.8                8.9 +/-    2.07      22.8 +/-    2.07  0.060 / 0.080