PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/18-21:58:10
G10     301.4          53.2                8.6 +/-    0.95      10.4 +/-    0.95  0.050 / 0.090
G14     210.9          13.4               13.1 +/-    3.90      33.9 +/-    3.90  0.070 / 0.090
G15     46.4           30.9                8.2 +/-    0.65      14.1 +/-    0.65  0.030 / 0.050
G20     358.5          65.2               10.2 +/-    1.01      11.1 +/-    1.01  0.040 / 0.050
G21     103.9          72.5               10.0 +/-    0.41      10.5 +/-    0.41  0.080 / 0.560
G24     92.0           27.0               11.4 +/-    1.36      21.2 +/-    1.36  0.110 / 0.590
G27     298.7          34.6                9.8 +/-    1.43      15.7 +/-    1.43  0.100 / 0.140
G32     211.4          35.6               12.4 +/-    0.83      19.4 +/-    0.83  0.080 / 0.150