PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-16:57:50
G05     46.8           23.6               10.7 +/-    0.65      21.5 +/-    0.65  0.060 / 0.130
G13     85.5           37.0               14.3 +/-    0.94      21.9 +/-    0.94  0.060 / 0.120
G15     131.2          48.0               18.9 +/-    1.29      24.4 +/-    1.29  0.050 / 0.090
G18     240.3          38.4               17.3 +/-    1.16      25.9 +/-    1.16  0.050 / 0.090
G20     18.1           73.7               15.0 +/-    0.46      15.6 +/-    0.46  0.030 / 0.040
G21     309.8          45.9               12.3 +/-    1.10      16.4 +/-    1.10  0.040 / 0.040
G25     201.6          14.9               21.0 +/-    1.77      52.2 +/-    1.77  0.080 / 0.190
G26     297.8          18.8               11.6 +/-    1.70      26.2 +/-    1.70  0.090 / 0.160
G29     145.4          72.4               18.0 +/-    0.43      18.8 +/-    0.43  0.040 / 0.120