PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/09-15:28:00
G02     65.0           27.7                6.5 +/-    1.66      12.0 +/-    1.66  0.020 / 0.030
G05     52.5           57.7                7.3 +/-    0.44       8.5 +/-    0.44  0.030 / 0.030
G12     184.9          27.3                9.6 +/-    1.04      17.8 +/-    1.04  0.230 / 0.270
G13     124.9          19.1               11.2 +/-    2.50      25.1 +/-    2.50  0.180 / 0.190
G15     159.7          17.1               11.8 +/-    1.02      28.0 +/-    1.02  0.030 / 0.030
G20     212.5          65.3                8.8 +/-    0.85       9.6 +/-    0.85  0.030 / 0.030
G21     277.3          24.0                6.2 +/-    0.88      12.3 +/-    0.88  0.070 / 0.110
G25     227.2          47.0                9.8 +/-    3.32      12.8 +/-    3.32  0.090 / 0.120
G29     339.4          66.0                5.8 +/-    0.67       6.3 +/-    0.67  0.090 / 0.190