PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/06-19:27:50
G05     49.2           18.0               13.7 +/-    1.84      31.7 +/-    1.84  0.110 / 0.210
G10     237.8          13.3               18.0 +/-    3.81      46.5 +/-    3.81  0.130 / 0.250
G13     74.4           37.2               16.3 +/-    0.55      24.9 +/-    0.55  0.040 / 0.080
G15     119.9          53.5               19.5 +/-    0.53      23.6 +/-    0.53  0.040 / 0.080
G18     248.0          44.5               18.7 +/-    1.63      25.4 +/-    1.63  0.040 / 0.050
G20     29.5           64.4               17.1 +/-    0.47      18.8 +/-    0.47  0.040 / 0.050
G21     316.8          50.2               17.3 +/-    0.93      21.7 +/-    0.93  0.060 / 0.120
G26     289.6          18.8               14.9 +/-    1.61      33.6 +/-    1.61  0.060 / 0.140
G29     154.6          64.2               17.9 +/-    0.73      19.6 +/-    0.73  0.130 / 0.450