PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-09:58:00
G08     318.4          13.5                2.0 +/-    2.20       5.2 +/-    2.20  0.030 / 0.040
G10     310.9          56.1                3.3 +/-    1.72       3.8 +/-    1.72  0.030 / 0.040
G14     212.1          19.8                3.6 +/-    2.40       7.9 +/-    2.40  0.080 / 0.040
G15     45.5           20.2                2.3 +/-    2.39       5.1 +/-    2.39  0.080 / 0.040
G20     12.0           64.2                3.8 +/-    0.75       4.1 +/-    0.75  0.070 / 0.110
G21     118.7          64.9                7.4 +/-    0.55       8.1 +/-    0.55  0.070 / 0.100
G24     86.7           28.5                5.9 +/-    0.96      10.7 +/-    0.96  0.080 / 0.080
G27     293.5          35.9                4.8 +/-    2.40       7.5 +/-    2.40  0.060 / 0.080
G32     214.8          35.5                5.3 +/-    1.70       8.4 +/-    1.70  0.060 / 0.080