PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-03:28:10
G08     272.7          20.9                9.8 +/-    2.94      21.1 +/-    2.94  0.030 / 0.030
G10     44.9           61.5                4.2 +/-    1.13       4.7 +/-    1.13  0.020 / 0.020
G11     314.5          14.4                6.1 +/-    1.72      15.3 +/-    1.72  0.110 / 0.160
G14     254.3          63.1                9.0 +/-    0.64      10.0 +/-    0.64  0.070 / 0.150
G18     83.5           42.1                5.9 +/-    1.07       8.3 +/-    1.07  0.030 / 0.030
G21     152.7          22.2                6.2 +/-    2.48      13.0 +/-    2.48  0.030 / 0.020
G24     43.8           16.6                5.7 +/-    2.01      13.7 +/-    2.01  0.150 / 0.130
G27     236.0          20.3                8.0 +/-    2.76      17.6 +/-    2.76  0.070 / 0.160
G31     180.1          22.6                7.6 +/-    2.68      15.7 +/-    2.68  0.160 / 0.210
G32     303.1          75.6                6.8 +/-    0.64       7.0 +/-    0.64  0.210 / 0.400