PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/26-19:27:50
G10     269.3          38.9               17.2 +/-    1.21      25.5 +/-    1.21  0.080 / 0.140
G13     41.4           17.8               12.7 +/-    1.06      29.4 +/-    1.06  0.090 / 0.180
G15     56.4           46.3               13.4 +/-    0.65      17.8 +/-    0.65  0.050 / 0.090
G16     282.2          10.3               12.9 +/-    1.82      35.6 +/-    1.82  0.060 / 0.120
G18     308.0          65.6               13.2 +/-    0.60      14.3 +/-    0.60  0.100 / 0.190
G20     55.8           33.8               12.2 +/-    1.35      19.9 +/-    1.35  0.110 / 0.230
G21     19.6           74.2               14.7 +/-    1.04      15.2 +/-    1.04  0.040 / 0.050
G24     119.6          15.3               21.4 +/-    2.09      52.9 +/-    2.09  0.040 / 0.050
G27     316.7          22.0                8.3 +/-    1.40      17.5 +/-    1.40  0.100 / 0.560
G29     165.6          23.1               20.0 +/-    2.87      40.9 +/-    2.87  0.100 / 0.680