PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/10-08:12:50
G01     113.8          21.5                5.5 +/-    1.26      11.8 +/-    1.26  0.030 / 0.020
G07     95.5           62.2                6.3 +/-    0.83       7.0 +/-    0.83  0.030 / 0.020
G08     42.5           24.2                4.4 +/-    2.10       8.7 +/-    2.10  0.030 / 0.030
G09     172.6          15.5                5.2 +/-    2.33      12.8 +/-    2.33  0.030 / 0.030
G11     96.8           41.8                5.7 +/-    0.86       8.0 +/-    0.86  0.110 / 0.180
G13     314.3          24.3                2.6 +/-    1.08       5.2 +/-    1.08  0.090 / 0.160
G17     202.5          32.6                6.2 +/-    0.91      10.3 +/-    0.91  0.090 / 0.170
G18     86.1           22.5                4.6 +/-    1.14       9.6 +/-    1.14  0.090 / 0.170
G28     301.7          58.8                5.0 +/-    1.47       5.7 +/-    1.47  0.170 / 0.340
G30     353.9          72.4                5.5 +/-    1.01       5.8 +/-    1.01  0.190 / 0.250