PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-01:42:40
G08     286.2          23.4               10.7 +/-    1.10      21.7 +/-    1.10  0.050 / 0.120
G10     16.6           63.3                8.1 +/-    0.64       8.9 +/-    0.64  0.060 / 0.130
G14     235.6          52.7               11.2 +/-    0.58      13.7 +/-    0.58  0.060 / 0.100
G18     69.1           49.0                9.1 +/-    0.93      11.6 +/-    0.93  0.080 / 0.100
G21     148.3          34.4               10.6 +/-    1.27      16.9 +/-    1.27  0.030 / 0.030
G24     52.8           24.3                8.3 +/-    0.88      16.5 +/-    0.88  0.030 / 0.030
G27     247.3          28.5               11.7 +/-    1.50      21.2 +/-    1.50  0.030 / 0.020
G32     255.7          69.6               10.0 +/-    0.73      10.6 +/-    0.73  0.030 / 0.030