PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/17-16:58:00
G08     269.5          19.8                6.2 +/-    2.96      13.7 +/-    2.96  0.140 / 0.270
G10     57.8           57.9                7.5 +/-    0.72       8.7 +/-    0.72  0.200 / 0.160
G11     316.4          11.5               -0.1 +/-   14.59      -0.2 +/-   14.59  0.040 / 0.050
G14     254.8          60.6                8.6 +/-    0.52       9.8 +/-    0.52  0.040 / 0.050
G20     94.2           35.5                8.2 +/-    1.10      12.9 +/-    1.10  0.110 / 0.200
G21     154.3          17.7                9.3 +/-    2.38      21.8 +/-    2.38  0.090 / 0.230
G24     41.8           13.1                5.7 +/-    2.38      14.9 +/-    2.38  0.200 / 0.430
G27     233.9          18.6                6.8 +/-    3.70      15.6 +/-    3.70  0.100 / 0.430
G31     179.4          26.2                9.9 +/-    1.43      18.9 +/-    1.43  0.020 / 0.030
G32     334.4          75.6                6.7 +/-    0.46       6.9 +/-    0.46  0.030 / 0.040