PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/16-08:12:40
G01     68.8           31.9                4.8 +/-    1.01       8.1 +/-    1.01  0.030 / 0.040
G07     137.0          30.1                6.9 +/-    1.35      12.0 +/-    1.35  0.030 / 0.030
G11     54.4           33.2                3.8 +/-    0.87       6.2 +/-    0.87  0.080 / 0.120
G13     272.9          38.7                7.7 +/-    0.92      11.4 +/-    0.92  0.080 / 0.120
G15     301.6          15.6                0.7 +/-    3.08       1.6 +/-    3.08  0.060 / 0.100
G17     231.1          68.2                7.7 +/-    0.96       8.2 +/-    0.96  0.060 / 0.100
G19     223.1          44.3                5.8 +/-    1.05       7.9 +/-    1.05  0.050 / 0.120
G28     3.7            61.3                3.7 +/-    0.57       4.2 +/-    0.57  0.050 / 0.120
G30     136.0          64.7                9.0 +/-    0.76       9.9 +/-    0.76  0.040 / 0.050