PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/11-16:12:30
G02     37.9           51.7               11.6 +/-    0.47      14.3 +/-    0.47  0.040 / 0.040
G05     137.4          65.1               13.0 +/-    0.97      14.2 +/-    0.97  0.050 / 0.040
G06     56.2           14.0                9.6 +/-    1.75      24.5 +/-    1.75  0.040 / 0.040
G12     196.2          62.8               13.5 +/-    1.21      14.9 +/-    1.21  0.050 / 0.040
G20     199.2          31.1               12.6 +/-    1.65      21.6 +/-    1.65  0.050 / 0.140
G25     285.8          57.7               12.9 +/-    1.32      15.0 +/-    1.32  0.050 / 0.150
G29     313.5          36.2               11.0 +/-    1.73      17.0 +/-    1.73  0.040 / 0.060