PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-22:43:00
G08     311.7          18.2                7.8 +/-    1.51      17.8 +/-    1.51  0.070 / 0.080
G10     325.5          58.9                7.6 +/-    0.75       8.8 +/-    0.75  0.090 / 0.080
G14     216.2          26.6               10.5 +/-    2.00      19.7 +/-    2.00  0.060 / 0.090
G15     46.3           18.5                6.0 +/-    0.72      13.8 +/-    0.72  0.070 / 0.110
G20     30.4           61.8                9.1 +/-    0.44      10.2 +/-    0.44  0.040 / 0.050
G21     130.3          60.6               11.4 +/-    0.96      12.8 +/-    0.96  0.040 / 0.060
G24     75.6           29.1                8.1 +/-    0.57      14.4 +/-    0.57  0.080 / 0.230
G27     280.9          37.4               10.3 +/-    0.93      15.7 +/-    0.93  0.080 / 0.200
G32     220.0          49.9               10.5 +/-    1.17      13.3 +/-    1.17  0.100 / 0.180