PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/13-19:27:50
G10     247.0          22.7               19.9 +/-    3.06      41.0 +/-    3.06  0.180 / 0.350
G13     59.0           33.5               17.1 +/-    0.74      27.9 +/-    0.74  0.140 / 0.410
G15     94.7           57.5               19.6 +/-    0.57      22.8 +/-    0.57  0.120 / 0.300
G16     304.5          13.3               14.6 +/-    1.71      37.9 +/-    1.71  0.100 / 0.330
G18     263.4          53.8               19.9 +/-    0.69      24.0 +/-    0.69  0.050 / 0.060
G20     39.2           52.8               17.4 +/-    0.92      21.2 +/-    0.92  0.030 / 0.060
G21     331.3          59.0               18.6 +/-    0.71      21.3 +/-    0.71  0.040 / 0.060
G26     277.0          16.5               17.2 +/-    2.38      41.4 +/-    2.38  0.040 / 0.060
G29     160.8          49.3               20.7 +/-    2.02      26.4 +/-    2.02  0.050 / 0.120