PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/15-23:58:00
G01     316.2          23.3                6.6 +/-    2.19      13.5 +/-    2.19  0.130 / 0.270
G10     88.9           50.2                9.4 +/-    0.66      11.9 +/-    0.66  0.130 / 0.300
G11     296.0          26.6                6.9 +/-    0.96      13.0 +/-    0.96  0.040 / 0.060
G14     322.6          71.2                8.8 +/-    0.67       9.2 +/-    0.67  0.030 / 0.070
G18     107.4          24.1                9.2 +/-    0.97      18.3 +/-    0.97  0.110 / 0.480
G22     303.5          14.4                6.5 +/-    2.28      16.3 +/-    2.28  0.130 / 0.410
G25     93.4           11.4               10.1 +/-    1.72      27.3 +/-    1.72  0.100 / 0.160
G31     178.1          46.2               12.6 +/-    1.35      16.7 +/-    1.35  0.120 / 0.150
G32     12.8           64.6                6.8 +/-    0.76       7.4 +/-    0.76  0.030 / 0.030