PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/23-01:58:00
G08     267.8          19.2                9.3 +/-    4.16      20.8 +/-    4.16  0.090 / 0.150
G10     57.3           59.1                8.4 +/-    0.87       9.6 +/-    0.87  0.110 / 0.190
G14     260.9          64.0                9.1 +/-    0.66      10.0 +/-    0.66  0.140 / 0.210
G18     313.4          30.1                7.9 +/-    1.10      13.8 +/-    1.10  0.100 / 0.230
G20     48.4           67.9               10.6 +/-    0.88      11.3 +/-    0.88  0.040 / 0.050
G21     154.7          18.6                7.9 +/-    2.21      18.0 +/-    2.21  0.050 / 0.040
G24     39.8           10.1                5.2 +/-    4.42      14.4 +/-    4.42  0.100 / 0.360
G27     233.7          17.5               10.9 +/-    1.43      25.6 +/-    1.43  0.070 / 0.360
G31     177.1          29.8               11.0 +/-    1.86      19.2 +/-    1.86  0.150 / 0.140
G32     338.7          74.8                8.1 +/-    0.41       8.4 +/-    0.41  0.100 / 0.170