PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/17-16:27:50
G05     46.4           24.8                6.5 +/-    0.93      12.7 +/-    0.93  0.080 / 0.120
G13     81.9           35.2                8.3 +/-    0.61      13.1 +/-    0.61  0.070 / 0.100
G15     130.4          48.9                8.3 +/-    1.06      10.6 +/-    1.06  0.090 / 0.220
G16     318.1          10.6               -3.9 +/-   18.81     -10.7 +/-   18.81  0.120 / 0.230
G20     244.0          34.5               10.3 +/-    0.99      16.5 +/-    0.99  0.070 / 0.100
G21     308.2          42.8                8.1 +/-    0.92      11.3 +/-    0.92  0.050 / 0.080
G25     202.7          16.3                8.3 +/-    2.13      20.0 +/-    2.13  0.160 / 0.470
G26     293.3          20.2                8.2 +/-    2.18      18.1 +/-    2.18  0.130 / 0.560
G29     144.6          80.0                6.7 +/-    0.67       6.7 +/-    0.67  0.020 / 0.030