PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/15-19:43:00
G01     317.4          21.2                8.8 +/-    3.73      18.7 +/-    3.73  0.160 / 0.300
G08     254.0          11.0                8.3 +/-    3.01      22.6 +/-    3.01  0.150 / 0.250
G10     85.5           51.5                9.9 +/-    0.72      12.2 +/-    0.72  0.100 / 0.230
G11     299.9          24.5               11.0 +/-    1.86      21.7 +/-    1.86  0.110 / 0.210
G14     310.9          71.1                9.4 +/-    1.20       9.8 +/-    1.20  0.040 / 0.030
G18     105.9          24.7               10.3 +/-    1.18      20.3 +/-    1.18  0.040 / 0.030
G22     302.5          12.9                9.9 +/-    2.74      26.0 +/-    2.74  0.080 / 0.050
G25     97.4           10.3               -9.9 +/-   36.63     -27.6 +/-   36.63  0.060 / 0.050
G31     176.8          45.2               13.1 +/-    1.19      17.6 +/-    1.19  0.140 / 0.330
G32     13.0           65.0                9.0 +/-    0.68       9.8 +/-    0.68  0.150 / 0.320