PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-22:42:30
G08     311.7          18.2                7.4 +/-    1.14      17.1 +/-    1.14  0.040 / 0.040
G10     325.5          58.9                7.9 +/-    0.81       9.0 +/-    0.81  0.040 / 0.040
G14     216.2          26.6               10.5 +/-    2.13      19.8 +/-    2.13  0.090 / 0.200
G15     46.3           18.5                6.2 +/-    2.40      14.2 +/-    2.40  0.100 / 0.230
G20     30.4           61.8               10.0 +/-    1.64      11.2 +/-    1.64  0.060 / 0.070
G21     130.3          60.6               10.3 +/-    0.44      11.6 +/-    0.44  0.060 / 0.060
G24     75.6           29.1                9.9 +/-    1.29      17.7 +/-    1.29  0.080 / 0.080
G27     280.9          37.4               10.9 +/-    1.80      16.5 +/-    1.80  0.060 / 0.080
G32     220.0          49.9               10.1 +/-    1.62      12.8 +/-    1.62  0.140 / 0.230