PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/16-18:28:10
G05     46.8           24.3                8.8 +/-    1.12      17.5 +/-    1.12  0.050 / 0.120
G13     85.1           37.1               10.9 +/-    0.85      16.7 +/-    0.85  0.060 / 0.120
G15     131.4          48.2               12.5 +/-    1.28      16.1 +/-    1.28  0.100 / 0.170
G18     240.6          38.3               11.1 +/-    2.16      16.6 +/-    2.16  0.080 / 0.210
G20     20.5           72.6               10.2 +/-    0.82      10.6 +/-    0.82  0.040 / 0.040
G21     309.3          45.4               10.0 +/-    0.97      13.5 +/-    0.97  0.040 / 0.040
G25     200.8          14.2               15.7 +/-    3.20      39.8 +/-    3.20  0.050 / 0.080
G26     298.2          18.4                9.6 +/-    1.29      22.0 +/-    1.29  0.050 / 0.090
G29     146.4          72.7               12.1 +/-    0.87      12.7 +/-    0.87  0.050 / 0.130