PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/25-00:27:50
G01     253.7          36.7                7.5 +/-    1.98      11.6 +/-    1.98  0.050 / 0.080
G03     316.4          40.4                5.8 +/-    2.24       8.4 +/-    2.24  0.060 / 0.110
G11     237.9          13.0                8.2 +/-    2.30      21.4 +/-    2.30  0.040 / 0.040
G14     57.7           42.3                6.0 +/-    1.90       8.5 +/-    1.90  0.040 / 0.040
G16     163.2          16.6               -0.6 +/-   16.79      -1.4 +/-   16.79  0.050 / 0.090
G18     220.5          28.6                8.7 +/-    3.41      15.7 +/-    3.41  0.070 / 0.070
G22     307.5          62.9                5.2 +/-    0.70       5.8 +/-    0.70  0.110 / 0.450
G26     138.6          36.0                9.8 +/-    1.10      15.3 +/-    1.10  0.150 / 0.350
G31     41.8           61.9                5.6 +/-    0.71       6.3 +/-    0.71  0.170 / 0.490
G32     75.5           23.9                7.0 +/-    2.43      13.9 +/-    2.43  0.170 / 0.400