PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-17:42:40
G01     318.3          21.2                4.9 +/-    4.83      10.5 +/-    4.83  0.150 / 0.300
G08     255.9          13.2                7.7 +/-    1.53      20.0 +/-    1.53  0.140 / 0.190
G10     82.1           50.7                7.2 +/-    0.88       9.0 +/-    0.88  0.040 / 0.050
G11     305.9          20.1                7.4 +/-    2.47      16.2 +/-    2.47  0.050 / 0.060
G14     287.5          68.6                5.9 +/-    0.73       6.3 +/-    0.73  0.190 / 0.320
G20     107.4          25.3                8.8 +/-    0.84      17.0 +/-    0.84  0.230 / 0.360
G31     176.2          41.9                9.1 +/-    0.76      12.9 +/-    0.76  0.040 / 0.070
G32     12.8           66.0                5.4 +/-    0.66       5.8 +/-    0.66  0.050 / 0.060