PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-08:27:50
G08     265.1          17.2                5.9 +/-    2.31      14.0 +/-    2.31  0.120 / 0.210
G10     67.3           56.2                2.5 +/-    0.33       2.9 +/-    0.33  0.180 / 0.290
G11     309.3          19.2                3.4 +/-    1.98       7.6 +/-    1.98  0.030 / 0.040
G14     273.7          68.4                3.2 +/-    0.51       3.4 +/-    0.51  0.030 / 0.040
G18     310.3          35.7                4.5 +/-    2.05       7.0 +/-    2.05  0.080 / 0.310
G20     98.2           34.6                3.7 +/-    0.90       5.9 +/-    0.90  0.170 / 0.350
G21     155.1          12.0                3.0 +/-    2.35       8.0 +/-    2.35  0.040 / 0.050
G27     231.0          14.7                3.7 +/-    1.25       9.2 +/-    1.25  0.040 / 0.060
G31     177.8          32.9                3.5 +/-    2.91       5.8 +/-    2.91  0.130 / 0.250
G32     332.0          73.8                4.0 +/-    0.56       4.1 +/-    0.56  0.110 / 0.260