PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-16:42:40
G05     50.7           13.7                7.6 +/-    0.69      19.4 +/-    0.69  0.050 / 0.200
G10     239.8          15.7               11.8 +/-    1.50      28.9 +/-    1.50  0.050 / 0.140
G13     70.2           36.6                9.4 +/-    0.74      14.5 +/-    0.74  0.060 / 0.080
G15     112.8          55.1               11.7 +/-    0.48      13.9 +/-    0.48  0.040 / 0.070
G16     314.3          11.0                7.8 +/-    5.10      21.4 +/-    5.10  0.100 / 0.210
G18     251.8          47.7               13.6 +/-    1.21      17.6 +/-    1.21  0.110 / 0.200
G20     30.3           62.8               10.9 +/-    0.76      12.1 +/-    0.76  0.030 / 0.050
G21     322.2          53.8               10.1 +/-    1.20      12.2 +/-    1.20  0.030 / 0.050
G26     285.5          18.8                9.3 +/-    1.77      21.0 +/-    1.77  0.050 / 0.100
G29     156.1          60.0               12.9 +/-    1.00      14.7 +/-    1.00  0.040 / 0.130