PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-20:12:40
G05     49.8           17.0               12.3 +/-    1.17      29.1 +/-    1.17  0.090 / 0.190
G10     239.0          14.6               16.6 +/-    0.88      41.7 +/-    0.88  0.140 / 0.200
G13     72.2           37.0               14.9 +/-    0.76      22.8 +/-    0.76  0.040 / 0.050
G15     117.3          54.5               15.8 +/-    0.37      18.9 +/-    0.37  0.030 / 0.060
G16     313.8          11.5               12.0 +/-   13.87      32.4 +/-   13.87  0.110 / 0.190
G18     249.8          45.6               17.4 +/-    2.05      23.3 +/-    2.05  0.110 / 0.200
G20     31.4           62.4               14.7 +/-    0.73      16.3 +/-    0.73  0.080 / 0.130
G21     318.3          51.1               14.7 +/-    1.00      18.4 +/-    1.00  0.080 / 0.150
G26     287.2          18.8               13.9 +/-    2.01      31.5 +/-    2.01  0.040 / 0.040
G29     156.1          62.6               15.9 +/-    0.66      17.7 +/-    0.66  0.040 / 0.040