PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/23-23:27:30
G08     303.5          21.6               11.0 +/-    1.67      23.2 +/-    1.67  0.050 / 0.080
G10     340.5          61.1               10.6 +/-    0.78      11.9 +/-    0.78  0.060 / 0.070
G14     221.3          37.3               17.0 +/-    0.67      25.9 +/-    0.67  0.040 / 0.060
G18     47.0           57.1               11.4 +/-    0.44      13.3 +/-    0.44  0.040 / 0.080
G21     138.5          50.3               14.5 +/-    0.41      18.2 +/-    0.41  0.040 / 0.050
G24     69.5           30.1               11.5 +/-    0.87      20.1 +/-    0.87  0.040 / 0.040
G27     266.1          36.3               15.4 +/-    1.04      23.9 +/-    1.04  0.060 / 0.090
G32     228.4          54.2               15.2 +/-    0.48      18.3 +/-    0.48  0.090 / 0.100