PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/08-21:43:00
G05     52.5           12.2                8.0 +/-    0.82      21.2 +/-    0.82  0.040 / 0.070
G10     244.2          20.0               11.1 +/-    1.59      24.5 +/-    1.59  0.040 / 0.060
G13     63.4           35.2                8.2 +/-    0.52      12.9 +/-    0.52  0.100 / 0.290
G15     104.5          57.3               10.3 +/-    0.49      12.0 +/-    0.49  0.120 / 0.280
G16     306.5          13.6                7.7 +/-    2.13      19.7 +/-    2.13  0.150 / 0.420
G18     258.0          50.5                8.7 +/-    0.86      11.0 +/-    0.86  0.130 / 0.330
G20     37.5           55.1                9.3 +/-    0.63      11.0 +/-    0.63  0.050 / 0.120
G21     325.3          55.5               10.0 +/-    1.05      11.8 +/-    1.05  0.050 / 0.130
G26     279.0          17.8                7.5 +/-    1.63      17.4 +/-    1.63  0.120 / 0.140
G29     160.4          55.2               11.5 +/-    0.37      13.7 +/-    0.37  0.180 / 0.170