PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/13-14:58:00
G05     51.1           12.3                4.8 +/-    4.41      12.8 +/-    4.41  0.150 / 0.110
G10     240.2          16.2                7.4 +/-    1.28      17.9 +/-    1.28  0.120 / 0.090
G13     69.2           36.3                7.9 +/-    0.87      12.3 +/-    0.87  0.100 / 0.130
G15     111.0          55.3                8.9 +/-    0.42      10.5 +/-    0.42  0.100 / 0.140
G16     312.5          11.9                4.7 +/-    7.41      12.6 +/-    7.41  0.030 / 0.030
G18     252.8          48.7                8.7 +/-    5.47      11.2 +/-    5.47  0.040 / 0.050
G20     29.6           63.2                8.0 +/-    0.58       8.8 +/-    0.58  0.220 / 0.340
G26     283.7          19.0                6.4 +/-    1.11      14.3 +/-    1.11  0.140 / 0.330
G29     157.1          60.7               10.1 +/-    0.35      11.4 +/-    0.35  0.040 / 0.070