PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-08:12:40
G01     80.3           32.2                5.1 +/-    1.25       8.6 +/-    1.25  0.040 / 0.030
G07     130.8          38.6                7.3 +/-    1.01      10.9 +/-    1.01  0.030 / 0.040
G11     62.7           39.0                4.6 +/-    0.99       6.8 +/-    0.99  0.130 / 0.130
G13     285.4          38.8                0.0 +/-    2.82       0.1 +/-    2.82  0.090 / 0.080
G15     309.9          12.9                1.6 +/-    2.72       4.2 +/-    2.72  0.060 / 0.060
G17     218.8          58.9                6.8 +/-    1.34       7.8 +/-    1.34  0.070 / 0.050
G19     216.8          35.3                7.1 +/-    1.78      11.2 +/-    1.78  0.190 / 0.340
G28     345.2          61.5                4.0 +/-    0.45       4.4 +/-    0.45  0.230 / 0.280
G30     120.5          73.6                6.4 +/-    0.64       6.7 +/-    0.64  0.060 / 0.110