PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/05-14:27:50
G08     270.3          20.3                4.4 +/-    1.41       9.6 +/-    1.41  0.220 / 0.270
G10     53.0           59.5                5.4 +/-    0.42       6.1 +/-    0.42  0.150 / 0.200
G14     257.2          64.1                7.5 +/-    0.56       8.3 +/-    0.56  0.050 / 0.050
G18     313.4          31.4                5.1 +/-    1.47       8.7 +/-    1.47  0.040 / 0.040
G20     90.6           39.6                5.8 +/-    1.19       8.5 +/-    1.19  0.160 / 0.430
G21     152.5          15.1                6.4 +/-    1.74      15.8 +/-    1.74  0.160 / 0.330
G24     40.5           11.0                4.6 +/-    1.73      12.6 +/-    1.73  0.030 / 0.030
G27     238.1          19.9                5.6 +/-    2.14      12.4 +/-    2.14  0.030 / 0.030
G31     182.0          22.1                6.4 +/-    1.98      13.4 +/-    1.98  0.100 / 0.120
G32     307.7          75.3                5.9 +/-    0.65       6.1 +/-    0.65  0.080 / 0.140