PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/06-12:27:50
G08     271.3          20.5                4.3 +/-    1.86       9.4 +/-    1.86  0.030 / 0.020
G10     52.0           59.6                4.4 +/-    0.66       5.0 +/-    0.66  0.030 / 0.020
G14     256.0          63.8                5.1 +/-    0.50       5.7 +/-    0.50  0.110 / 0.180
G18     314.0          30.1                2.8 +/-    1.13       5.0 +/-    1.13  0.130 / 0.200
G20     90.0           40.0                4.5 +/-    0.87       6.5 +/-    0.87  0.060 / 0.050
G21     152.9          17.2                5.2 +/-    1.87      12.3 +/-    1.87  0.050 / 0.060
G24     41.1           12.0                2.6 +/-    2.07       7.0 +/-    2.07  0.030 / 0.020
G27     238.1          20.2                5.4 +/-    2.46      11.7 +/-    2.46  0.030 / 0.030
G31     181.1          22.7                4.1 +/-    0.96       8.5 +/-    0.96  0.070 / 0.120
G32     300.5          74.9                4.5 +/-    0.38       4.6 +/-    0.38  0.100 / 0.120