PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-01:28:00
G08     317.8          13.8                8.2 +/-    1.07      21.1 +/-    1.07  0.030 / 0.040
G10     308.2          54.7                8.0 +/-    0.54       9.5 +/-    0.54  0.030 / 0.040
G14     212.5          20.8               10.1 +/-    1.82      21.8 +/-    1.82  0.030 / 0.050
G15     45.6           23.1                7.0 +/-    0.85      14.3 +/-    0.85  0.030 / 0.040
G18     12.8           64.5                8.0 +/-    0.49       8.7 +/-    0.49  0.090 / 0.130
G20     77.4           12.0                8.9 +/-    1.69      23.7 +/-    1.69  0.080 / 0.110
G21     116.3          68.1               11.2 +/-    0.96      12.0 +/-    0.96  0.100 / 0.270
G24     90.4           29.1                9.5 +/-    0.73      16.9 +/-    0.73  0.080 / 0.280
G27     289.4          37.5                9.4 +/-    1.27      14.2 +/-    1.27  0.050 / 0.080
G32     214.9          38.4               10.4 +/-    1.15      15.6 +/-    1.15  0.060 / 0.090