PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/25-18:58:10
G01     298.6          38.2                9.3 +/-    0.91      14.0 +/-    0.91  0.070 / 0.090
G03     309.5          12.0                5.7 +/-   14.33      15.1 +/-   14.33  0.070 / 0.090
G10     114.4          32.8                9.7 +/-    1.08      16.0 +/-    1.08  0.080 / 0.180
G11     270.4          27.4                9.0 +/-    1.35      16.7 +/-    1.35  0.080 / 0.190
G14     15.3           62.1                7.6 +/-    0.59       8.4 +/-    0.59  0.040 / 0.070
G18     257.2          50.3               10.7 +/-    0.96      13.4 +/-    0.96  0.050 / 0.050
G22     312.5          32.8                7.9 +/-    1.70      13.1 +/-    1.70  0.050 / 0.080
G25     68.1           16.5                7.1 +/-    1.71      17.0 +/-    1.71  0.050 / 0.080
G31     166.6          71.0                9.8 +/-    0.94      10.3 +/-    0.94  0.070 / 0.130
G32     43.8           47.4                6.7 +/-    1.03       8.7 +/-    1.03  0.080 / 0.130