PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-06:27:40
G01     45.4           21.6                4.2 +/-    1.16       9.0 +/-    1.16  0.050 / 0.050
G06     177.2          30.2                9.7 +/-    1.17      16.9 +/-    1.17  0.050 / 0.040
G13     243.8          27.1                9.5 +/-    2.84      17.7 +/-    2.84  0.050 / 0.080
G15     279.4          14.0                3.7 +/-    1.47       9.4 +/-    1.47  0.070 / 0.090
G17     352.4          74.6                9.9 +/-    0.45      10.2 +/-    0.45  0.100 / 0.190
G19     255.3          62.4                9.5 +/-    0.53      10.6 +/-    0.53  0.090 / 0.180
G24     317.1          17.4                7.4 +/-    1.92      17.4 +/-    1.92  0.030 / 0.070
G28     59.0           51.7                9.0 +/-    0.65      11.1 +/-    0.65  0.030 / 0.030
G30     152.8          36.5               11.0 +/-    1.17      17.0 +/-    1.17  0.080 / 0.190