PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/22-18:12:50
G01     318.2          20.3                8.4 +/-    1.48      18.3 +/-    1.48  0.140 / 0.360
G08     253.1          11.9                8.5 +/-    3.19      22.9 +/-    3.19  0.140 / 0.290
G10     84.2           51.0               10.4 +/-    1.04      13.0 +/-    1.04  0.120 / 0.230
G11     299.4          25.0                9.5 +/-    1.49      18.5 +/-    1.49  0.090 / 0.220
G14     307.4          71.5                9.5 +/-    0.85      10.0 +/-    0.85  0.040 / 0.030
G18     299.4          45.2                8.7 +/-    1.44      11.6 +/-    1.44  0.060 / 0.050
G20     107.7          27.0               10.8 +/-    2.74      20.2 +/-    2.74  0.030 / 0.040
G22     302.2          12.1                8.1 +/-    3.39      21.5 +/-    3.39  0.030 / 0.050
G31     179.0          41.4               11.7 +/-    1.76      16.7 +/-    1.76  0.190 / 0.340
G32     10.0           66.3                9.8 +/-    0.76      10.6 +/-    0.76  0.150 / 0.280