PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-06:58:00
G08     311.0          18.4                3.3 +/-    1.69       7.4 +/-    1.69  0.070 / 0.090
G10     331.5          60.1                3.1 +/-    0.41       3.5 +/-    0.41  0.060 / 0.090
G14     216.9          30.0                5.8 +/-    2.51      10.2 +/-    2.51  0.030 / 0.040
G15     46.7           10.4                1.6 +/-    2.49       4.4 +/-    2.49  0.030 / 0.030
G20     35.2           60.8                4.9 +/-    1.08       5.5 +/-    1.08  0.030 / 0.050
G21     132.9          57.2                6.2 +/-    0.68       7.3 +/-    0.68  0.030 / 0.050
G24     74.8           29.7                4.9 +/-    1.21       8.6 +/-    1.21  0.100 / 0.200
G27     278.6          37.4                5.3 +/-    0.98       8.1 +/-    0.98  0.070 / 0.190
G32     221.7          46.5                4.3 +/-    1.24       5.6 +/-    1.24  0.100 / 0.200