PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/27-00:42:50
G08     317.8          13.8                8.6 +/-    1.58      22.0 +/-    1.58  0.080 / 0.130
G10     308.2          54.7                8.5 +/-    0.44      10.2 +/-    0.44  0.080 / 0.110
G14     212.5          20.7               13.0 +/-    2.13      28.1 +/-    2.13  0.060 / 0.110
G15     45.6           22.6                6.9 +/-    0.59      14.3 +/-    0.59  0.050 / 0.080
G18     13.5           64.4                8.7 +/-    0.66       9.5 +/-    0.66  0.030 / 0.050
G20     77.3           12.2                8.8 +/-    2.99      23.5 +/-    2.99  0.030 / 0.040
G21     116.5          67.8               10.5 +/-    0.66      11.3 +/-    0.66  0.050 / 0.090
G24     90.4           29.1               10.5 +/-    0.76      18.7 +/-    0.76  0.050 / 0.080
G27     289.4          37.5                9.0 +/-    0.96      13.6 +/-    0.96  0.090 / 0.260
G32     214.9          37.9               11.5 +/-    1.11      17.3 +/-    1.11  0.080 / 0.250