PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/27-00:57:30
G10     249.4          24.8                9.8 +/-    1.64      19.3 +/-    1.64  0.130 / 0.280
G13     55.8           31.9                8.1 +/-    0.86      13.6 +/-    0.86  0.110 / 0.390
G15     94.0           58.7               10.7 +/-    0.40      12.3 +/-    0.40  0.070 / 0.130
G16     298.4          14.7                5.8 +/-    2.21      14.5 +/-    2.21  0.110 / 0.170
G18     265.8          53.9                9.8 +/-    1.14      11.8 +/-    1.14  0.030 / 0.040
G20     42.8           48.3                7.4 +/-    0.44       9.5 +/-    0.44  0.040 / 0.050
G21     331.4          59.2                7.7 +/-    0.53       8.8 +/-    0.53  0.040 / 0.050
G26     270.7          16.0                9.4 +/-    1.77      22.8 +/-    1.77  0.030 / 0.050
G29     163.9          49.4                9.5 +/-    1.65      12.1 +/-    1.65  0.050 / 0.060