PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-15:42:50
G10     235.8          14.2                9.8 +/-    3.36      24.8 +/-    3.36  0.050 / 0.120
G13     74.7           35.2                8.1 +/-    0.67      12.8 +/-    0.67  0.050 / 0.110
G15     121.2          52.6               10.0 +/-    0.83      12.2 +/-    0.83  0.140 / 0.300
G16     313.5          12.9                4.6 +/-    2.33      11.9 +/-    2.33  0.110 / 0.330
G20     249.1          39.1               12.1 +/-    1.57      17.8 +/-    1.57  0.120 / 0.400
G21     313.5          46.6                7.4 +/-    1.05       9.8 +/-    1.05  0.150 / 0.400
G25     199.7          11.8               10.5 +/-    2.36      28.2 +/-    2.36  0.050 / 0.110
G26     287.8          20.1                5.8 +/-    1.27      12.7 +/-    1.27  0.060 / 0.070
G29     153.1          73.9               12.5 +/-    0.89      12.9 +/-    0.89  0.030 / 0.030