PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-20:57:40
G05     50.4           16.1               11.7 +/-    1.41      28.3 +/-    1.41  0.160 / 0.250
G10     240.2          16.0               18.5 +/-    1.15      44.8 +/-    1.15  0.190 / 0.330
G13     69.9           36.7               15.1 +/-    0.93      23.3 +/-    0.93  0.070 / 0.060
G15     114.7          55.4               16.2 +/-    0.44      19.3 +/-    0.44  0.050 / 0.060
G16     311.8          12.3               11.5 +/-    2.97      30.4 +/-    2.97  0.100 / 0.230
G18     251.7          46.8               15.9 +/-    4.06      20.9 +/-    4.06  0.080 / 0.180
G20     33.2           60.4               15.3 +/-    0.74      17.3 +/-    0.74  0.070 / 0.230
G21     319.8          52.0               13.6 +/-    0.58      16.8 +/-    0.58  0.180 / 0.190
G26     284.9          18.8               13.2 +/-    1.05      30.0 +/-    1.05  0.030 / 0.040
G29     157.5          61.1               18.0 +/-    0.68      20.3 +/-    0.68  0.030 / 0.040