PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-07:57:40
G08     288.1          23.1                5.3 +/-    1.36      10.8 +/-    1.36  0.040 / 0.030
G10     21.4           62.6                3.6 +/-    0.58       4.0 +/-    0.58  0.040 / 0.030
G14     234.4          51.7                6.3 +/-    1.07       7.9 +/-    1.07  0.080 / 0.140
G18     317.7          15.8                2.0 +/-    1.60       4.8 +/-    1.60  0.100 / 0.150
G20     72.6           49.2                4.5 +/-    0.52       5.8 +/-    0.52  0.050 / 0.120
G21     148.9          34.1                5.3 +/-    1.61       8.5 +/-    1.61  0.050 / 0.110
G24     51.1           22.3                2.9 +/-    1.33       6.1 +/-    1.33  0.050 / 0.070
G27     250.6          29.3                5.7 +/-    1.48      10.2 +/-    1.48  0.060 / 0.080
G31     183.0          10.6               -4.6 +/-   14.41     -12.5 +/-   14.41  0.110 / 0.380
G32     251.9          67.5                6.7 +/-    0.56       7.2 +/-    0.56  0.140 / 0.330