PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/24-09:42:40
G01     67.3           32.3                4.7 +/-    0.80       7.8 +/-    0.80  0.090 / 0.340
G07     139.0          26.9                7.1 +/-    2.04      13.2 +/-    2.04  0.110 / 0.310
G11     51.6           27.5                2.0 +/-    1.16       3.6 +/-    1.16  0.080 / 0.130
G13     272.9          36.5                7.1 +/-    1.54      11.0 +/-    1.54  0.040 / 0.090
G15     300.3          15.8                3.2 +/-    2.11       7.8 +/-    2.11  0.040 / 0.050
G17     241.8          73.8                6.5 +/-    0.77       6.8 +/-    0.77  0.040 / 0.070
G19     226.8          46.5                7.4 +/-    0.93       9.7 +/-    0.93  0.030 / 0.030
G28     25.7           58.3                4.0 +/-    0.39       4.7 +/-    0.39  0.030 / 0.030
G30     137.8          59.3                7.5 +/-    0.65       8.6 +/-    0.65  0.040 / 0.070