PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/15-21:42:40
G08     309.9          19.0               10.6 +/-    1.69      24.0 +/-    1.69  0.050 / 0.070
G10     327.5          59.1                9.7 +/-    1.14      11.1 +/-    1.14  0.070 / 0.060
G14     217.4          30.7               14.6 +/-    1.85      25.1 +/-    1.85  0.040 / 0.050
G15     46.5           11.7                8.0 +/-    1.77      21.5 +/-    1.77  0.030 / 0.060
G18     37.0           59.8                9.8 +/-    0.41      11.2 +/-    0.41  0.070 / 0.130
G21     132.5          55.9               11.3 +/-    0.53      13.3 +/-    0.53  0.070 / 0.160
G24     77.3           30.6               10.2 +/-    0.73      17.5 +/-    0.73  0.030 / 0.060
G27     274.9          37.8               11.7 +/-    1.22      17.6 +/-    1.22  0.040 / 0.050
G32     222.3          47.7               13.8 +/-    0.62      17.9 +/-    0.62  0.070 / 0.220