PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-14:28:10
G02     211.4          46.6               10.9 +/-    1.76      14.4 +/-    1.76  0.080 / 0.110
G06     90.3           78.7               11.3 +/-    0.62      11.5 +/-    0.62  0.050 / 0.080
G12     316.4          31.7                8.3 +/-    1.65      14.0 +/-    1.65  0.070 / 0.090
G17     51.0           36.8                7.4 +/-    0.58      11.4 +/-    0.58  0.070 / 0.090
G19     21.0           58.1               10.1 +/-    0.28      11.7 +/-    0.28  0.040 / 0.030
G24     274.4          43.3                8.7 +/-    1.62      12.0 +/-    1.62  0.040 / 0.030
G28     116.1          20.8               11.2 +/-    1.09      24.2 +/-    1.09  0.040 / 0.050