PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-01:28:00
G10     297.0          51.2                8.6 +/-    1.60      10.6 +/-    1.60  0.040 / 0.040
G14     210.1          13.9                9.7 +/-    1.70      24.8 +/-    1.70  0.040 / 0.050
G15     46.3           29.8                6.3 +/-    0.48      11.2 +/-    0.48  0.070 / 0.130
G18     356.2          66.1                7.1 +/-    0.84       7.7 +/-    0.84  0.070 / 0.140
G20     72.2           16.6                7.8 +/-    2.36      18.6 +/-    2.36  0.030 / 0.040
G21     97.8           73.7                9.8 +/-    0.56      10.2 +/-    0.56  0.040 / 0.050
G24     98.6           26.7               10.9 +/-    0.63      20.5 +/-    0.63  0.100 / 0.480
G27     298.2          35.3                7.4 +/-    0.82      11.7 +/-    0.82  0.220 / 0.600
G32     211.3          31.2                9.5 +/-    0.83      16.3 +/-    0.83  0.060 / 0.130