PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-20:27:50
G01     305.1          34.4                8.2 +/-    1.48      13.1 +/-    1.48  0.080 / 0.160
G10     108.2          39.1                9.0 +/-    0.70      13.3 +/-    0.70  0.050 / 0.130
G11     280.1          28.2                7.9 +/-    1.51      14.4 +/-    1.51  0.040 / 0.040
G14     2.1            65.7                7.2 +/-    0.46       7.9 +/-    0.46  0.050 / 0.050
G18     119.0          11.3                9.0 +/-    3.44      24.4 +/-    3.44  0.040 / 0.060
G22     310.2          27.0                6.7 +/-    1.76      12.5 +/-    1.76  0.040 / 0.050
G25     79.6           17.2                8.8 +/-    0.62      20.6 +/-    0.62  0.040 / 0.040
G31     168.4          66.1               11.3 +/-    1.04      12.3 +/-    1.04  0.040 / 0.050
G32     37.5           51.6                8.4 +/-    0.57      10.4 +/-    0.57  0.070 / 0.090