PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-21:42:30
G01     319.7          15.8                7.2 +/-    2.31      17.5 +/-    2.31  0.310 / 0.520
G08     259.0          14.4                7.9 +/-    0.93      20.0 +/-    0.93  0.300 / 0.420
G10     74.8           55.3                7.1 +/-    0.70       8.4 +/-    0.70  0.050 / 0.070
G11     305.2          22.2                5.9 +/-    1.71      12.4 +/-    1.71  0.060 / 0.070
G14     291.2          70.4                8.4 +/-    0.51       8.9 +/-    0.51  0.140 / 0.400
G18     100.0          29.9                9.8 +/-    0.68      17.2 +/-    0.68  0.130 / 0.320
G27     224.6          10.0                8.9 +/-   26.00      24.7 +/-   26.00  0.030 / 0.030
G31     179.5          36.2               12.0 +/-    1.69      18.6 +/-    1.69  0.030 / 0.030
G32     356.2          70.2                8.0 +/-    0.79       8.4 +/-    0.79  0.050 / 0.050