PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/05-17:13:10
G02     51.2           39.9               13.2 +/-    0.83      19.2 +/-    0.83  0.040 / 0.040
G05     89.0           70.6               14.0 +/-    0.69      14.8 +/-    0.69  0.040 / 0.050
G12     188.2          44.5               15.4 +/-    1.93      20.9 +/-    1.93  0.040 / 0.060
G20     203.1          48.4               15.5 +/-    0.67      19.9 +/-    0.67  0.040 / 0.060
G21     263.4          12.5               13.5 +/-    2.25      35.6 +/-    2.25  0.180 / 0.600
G25     250.8          57.7               15.7 +/-    0.87      18.2 +/-    0.87  0.250 / 0.600
G29     324.8          49.4               12.8 +/-    1.52      16.2 +/-    1.52  0.020 / 0.030