PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/16-04:13:10
G01     317.2          23.0                3.7 +/-    2.45       7.6 +/-    2.45  0.100 / 0.110
G08     256.3          11.2                6.3 +/-    5.01      17.2 +/-    5.01  0.060 / 0.100
G10     87.4           49.0                6.3 +/-    0.94       8.1 +/-    0.94  0.040 / 0.040
G11     298.9          24.5                3.2 +/-    1.77       6.3 +/-    1.77  0.040 / 0.040
G14     309.5          71.2                4.4 +/-    0.82       4.6 +/-    0.82  0.060 / 0.160
G18     299.4          44.4                2.4 +/-    3.76       3.2 +/-    3.76  0.080 / 0.160
G20     109.3          26.0                4.7 +/-    1.19       8.9 +/-    1.19  0.070 / 0.050
G22     303.4          13.7                5.6 +/-    3.64      14.4 +/-    3.64  0.060 / 0.050
G31     173.1          48.1                6.1 +/-    1.20       7.8 +/-    1.20  0.030 / 0.030
G32     12.9           65.2                3.5 +/-    0.92       3.8 +/-    0.92  0.030 / 0.020