PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-04:42:40
G08     274.2          19.8                8.0 +/-    1.74      17.8 +/-    1.74  0.120 / 0.230
G10     54.2           59.0                5.1 +/-    0.78       5.8 +/-    0.78  0.100 / 0.240
G14     256.1          63.2                6.5 +/-    0.69       7.1 +/-    0.69  0.110 / 0.160
G18     314.5          28.8                6.2 +/-    1.91      11.2 +/-    1.91  0.100 / 0.180
G20     90.7           39.9                6.7 +/-    0.69       9.7 +/-    0.69  0.030 / 0.040
G21     154.2          20.3                7.1 +/-    1.09      15.5 +/-    1.09  0.030 / 0.030
G24     41.9           13.3                4.0 +/-    0.80      10.4 +/-    0.80  0.080 / 0.070
G27     236.1          19.6                9.9 +/-    0.76      22.1 +/-    0.76  0.060 / 0.060
G31     178.4          26.3                8.3 +/-    1.83      15.7 +/-    1.83  0.130 / 0.240
G32     311.3          75.6                6.5 +/-    0.79       6.7 +/-    0.79  0.100 / 0.190