PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/26-16:27:40
G08     292.7          23.8                8.1 +/-    1.02      16.2 +/-    1.02  0.040 / 0.070
G10     6.1            62.9                8.7 +/-    0.66       9.7 +/-    0.66  0.040 / 0.090
G14     228.5          46.0                8.4 +/-    2.38      11.2 +/-    2.38  0.030 / 0.020
G18     317.4          11.8               -0.5 +/-   21.63      -1.4 +/-   21.63  0.040 / 0.020
G20     63.7           52.8                7.5 +/-    0.62       9.2 +/-    0.62  0.080 / 0.140
G21     145.3          37.9               12.1 +/-    0.78      18.3 +/-    0.78  0.080 / 0.150
G24     54.1           23.3                7.9 +/-    2.74      16.0 +/-    2.74  0.100 / 0.150
G27     259.0          32.4                5.8 +/-    2.33       9.7 +/-    2.33  0.090 / 0.130
G32     242.3          65.5                8.7 +/-    0.88       9.4 +/-    0.88  0.090 / 0.160