PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-00:42:40
G08     301.0          22.3               12.6 +/-    0.86      26.2 +/-    0.86  0.030 / 0.020
G10     345.5          61.7               12.1 +/-    0.91      13.5 +/-    0.91  0.030 / 0.020
G14     223.0          39.8               15.6 +/-    1.26      22.8 +/-    1.26  0.040 / 0.050
G18     50.0           56.2               13.9 +/-    0.62      16.4 +/-    0.62  0.040 / 0.050
G21     140.4          48.5               16.4 +/-    0.92      21.0 +/-    0.92  0.050 / 0.090
G24     66.7           29.6               13.4 +/-    1.10      23.6 +/-    1.10  0.040 / 0.070
G27     263.0          35.5               16.7 +/-    1.67      26.3 +/-    1.67  0.100 / 0.070
G32     231.3          57.2               14.0 +/-    2.01      16.3 +/-    2.01  0.080 / 0.080