PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-15:57:40
G02     72.6           21.6                9.5 +/-    1.54      20.1 +/-    1.54  0.030 / 0.040
G05     46.4           48.5               10.9 +/-    0.88      14.0 +/-    0.88  0.030 / 0.050
G12     182.7          17.8               20.1 +/-    3.97      46.7 +/-    3.97  0.080 / 0.160
G13     116.4          25.5               18.3 +/-    0.87      35.4 +/-    0.87  0.090 / 0.160
G15     154.1          25.3               21.7 +/-    1.49      42.1 +/-    1.49  0.040 / 0.040
G18     223.3          15.6               21.2 +/-    2.66      52.0 +/-    2.66  0.040 / 0.040
G20     224.0          75.9               16.0 +/-    0.31      16.4 +/-    0.31  0.110 / 0.240
G21     285.5          29.7               12.4 +/-    1.76      21.8 +/-    1.76  0.130 / 0.180
G25     217.9          38.5               17.6 +/-    1.22      26.2 +/-    1.22  0.060 / 0.170
G29     352.9          75.9               11.8 +/-    0.86      12.2 +/-    0.86  0.050 / 0.160