PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-08:58:10
G08     267.3          18.3                3.2 +/-    1.62       7.4 +/-    1.62  0.170 / 0.380
G10     62.6           57.4                4.5 +/-    0.42       5.3 +/-    0.42  0.210 / 0.470
G11     311.1          17.7               -3.6 +/-   13.22      -8.3 +/-   13.22  0.030 / 0.030
G14     267.3          67.0                4.1 +/-    1.02       4.4 +/-    1.02  0.040 / 0.030
G18     311.9          33.6                2.6 +/-    1.04       4.2 +/-    1.04  0.130 / 0.270
G20     95.6           36.4                4.0 +/-    0.57       6.2 +/-    0.57  0.120 / 0.210
G21     154.6          14.2                6.2 +/-    1.47      15.7 +/-    1.47  0.050 / 0.060
G27     233.1          16.5                4.7 +/-    3.22      11.4 +/-    3.22  0.040 / 0.060
G31     178.5          29.9                7.1 +/-    2.08      12.5 +/-    2.08  0.080 / 0.220
G32     320.4          74.4                4.7 +/-    0.61       4.8 +/-    0.61  0.080 / 0.240