PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-21:27:40
G08     316.2          15.3                6.7 +/-    1.69      16.6 +/-    1.69  0.030 / 0.040
G10     314.7          56.7                8.6 +/-    1.43      10.1 +/-    1.43  0.040 / 0.050
G14     213.6          21.2               11.5 +/-    2.60      24.5 +/-    2.60  0.050 / 0.080
G15     45.9           23.0                8.0 +/-    1.91      16.3 +/-    1.91  0.050 / 0.070
G20     17.5           63.7                9.5 +/-    0.59      10.5 +/-    0.59  0.110 / 0.160
G21     121.8          65.8               11.4 +/-    0.72      12.4 +/-    0.72  0.090 / 0.160
G24     82.3           28.7               10.9 +/-    0.91      19.6 +/-    0.91  0.080 / 0.100
G27     289.1          36.8                7.8 +/-    1.77      12.0 +/-    1.77  0.060 / 0.120
G32     215.8          43.5               11.5 +/-    1.05      15.8 +/-    1.05  0.290 / 0.280