PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-01:57:30
G07     316.8          51.8                3.6 +/-    1.31       4.4 +/-    1.31  0.120 / 0.210
G08     116.8          46.2                9.0 +/-    0.95      11.9 +/-    0.95  0.130 / 0.180
G09     206.4          83.1                4.0 +/-    1.20       4.0 +/-    1.20  0.050 / 0.070
G16     43.8           15.1                3.0 +/-    3.35       7.4 +/-    3.35  0.040 / 0.070
G23     150.4          55.2                6.6 +/-    0.46       7.9 +/-    0.46  0.230 / 0.470
G27     68.7           36.0                4.9 +/-    0.56       7.6 +/-    0.56  0.230 / 0.460
G28     227.5          11.6                0.7 +/-   18.03       2.0 +/-   18.03  0.200 / 0.530
G30     290.8          24.4                4.1 +/-    1.28       8.2 +/-    1.28  0.150 / 0.460