PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-23:27:40
G08     296.2          23.1               23.8 +/-    0.72      48.6 +/-    0.72  0.030 / 0.020
G10     356.1          62.6               21.4 +/-    0.88      23.8 +/-    0.88  0.040 / 0.020
G14     226.7          44.2               29.6 +/-    2.23      40.4 +/-    2.23  0.070 / 0.120
G18     57.8           53.4               22.3 +/-    1.43      27.1 +/-    1.43  0.070 / 0.100
G21     143.5          42.8               24.7 +/-    0.63      34.5 +/-    0.63  0.050 / 0.060
G24     61.4           28.2               20.8 +/-    1.91      37.7 +/-    1.91  0.050 / 0.060
G27     257.2          33.5               27.5 +/-    1.77      44.9 +/-    1.77  0.090 / 0.100
G32     237.4          60.8               27.0 +/-    1.92      30.5 +/-    1.92  0.090 / 0.100