PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/23-01:27:40
G08     307.8          20.1                9.6 +/-    2.01      21.2 +/-    2.01  0.080 / 0.090
G10     330.7          59.7               11.1 +/-    0.77      12.6 +/-    0.77  0.080 / 0.080
G14     218.4          32.9               16.1 +/-    1.48      26.7 +/-    1.48  0.030 / 0.030
G15     46.8           11.9                9.4 +/-    1.97      25.2 +/-    1.97  0.020 / 0.030
G18     37.6           59.8               11.4 +/-    0.63      13.0 +/-    0.63  0.030 / 0.040
G21     134.2          56.2               13.9 +/-    0.46      16.4 +/-    0.46  0.030 / 0.050
G24     75.2           30.6               12.3 +/-    0.69      21.3 +/-    0.69  0.100 / 0.150
G27     272.4          37.5               12.7 +/-    2.53      19.3 +/-    2.53  0.140 / 0.130
G32     223.9          50.8               13.5 +/-    1.74      16.8 +/-    1.74  0.050 / 0.070