PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/04-21:43:00
G01     252.1          36.1                9.4 +/-    1.47      14.7 +/-    1.47  0.110 / 0.370
G03     316.3          42.3                7.8 +/-    1.62      10.9 +/-    1.62  0.120 / 0.270
G11     236.7          12.2                8.3 +/-    2.66      22.2 +/-    2.66  0.070 / 0.090
G14     59.5           41.0                8.1 +/-    0.86      11.6 +/-    0.86  0.070 / 0.100
G16     163.6          17.0               11.7 +/-    1.57      27.6 +/-    1.57  0.040 / 0.050
G22     306.0          64.5                8.6 +/-    1.36       9.4 +/-    1.36  0.030 / 0.040
G23     285.1          17.1               10.8 +/-    2.46      25.6 +/-    2.46  0.080 / 0.240
G26     139.4          36.5               13.1 +/-    1.04      20.1 +/-    1.04  0.090 / 0.250
G31     41.1           62.9                8.9 +/-    0.68       9.9 +/-    0.68  0.050 / 0.100
G32     76.1           24.0                9.3 +/-    1.17      18.5 +/-    1.17  0.070 / 0.100