PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-16:57:50
G05     47.1           22.4                7.1 +/-    1.88      14.7 +/-    1.88  0.060 / 0.270
G10     233.9          11.7               -4.4 +/-   37.07     -11.8 +/-   37.07  0.180 / 0.300
G13     78.7           35.3               11.1 +/-    1.36      17.5 +/-    1.36  0.080 / 0.090
G15     127.5          50.5                9.4 +/-    0.85      11.8 +/-    0.85  0.070 / 0.070
G16     316.1          11.7                1.3 +/-   20.59       3.5 +/-   20.59  0.230 / 0.380
G20     246.1          36.2               11.5 +/-    2.08      17.8 +/-    2.08  0.220 / 0.410
G21     310.3          44.3                8.9 +/-    0.93      12.1 +/-    0.93  0.420 / 0.600
G25     201.5          14.3               10.8 +/-    3.41      27.4 +/-    3.41  0.270 / 0.500
G26     290.8          20.2                5.2 +/-    1.02      11.4 +/-    1.02  0.020 / 0.020
G29     149.1          77.2                9.1 +/-    0.44       9.3 +/-    0.44  0.030 / 0.020