PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/19-22:43:10
G05     47.9           18.6                6.3 +/-    2.67      14.4 +/-    2.67  0.090 / 0.070
G10     234.5          12.1               -2.0 +/-   38.93      -5.2 +/-   38.93  0.060 / 0.070
G13     77.6           35.5               11.1 +/-    1.38      17.4 +/-    1.38  0.090 / 0.120
G15     127.0          51.0               12.4 +/-    0.62      15.4 +/-    0.62  0.090 / 0.120
G16     316.5          11.2                4.3 +/-   16.20      11.7 +/-   16.20  0.160 / 0.370
G20     246.2          34.9               11.1 +/-    2.51      17.6 +/-    2.51  0.200 / 0.420
G21     311.0          44.9                9.8 +/-    0.89      13.3 +/-    0.89  0.030 / 0.050
G25     201.1          13.5               12.2 +/-    3.44      31.4 +/-    3.44  0.030 / 0.050
G26     290.4          20.1                7.4 +/-    2.00      16.2 +/-    2.00  0.440 / 0.570
G29     149.7          74.3               11.6 +/-    0.68      12.0 +/-    0.68  0.220 / 0.260