PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-15:42:30
G01     319.8          15.6                4.1 +/-    1.61      10.0 +/-    1.61  0.050 / 0.070
G08     261.9          14.4                6.6 +/-    1.70      16.7 +/-    1.70  0.040 / 0.060
G10     75.1           55.0                4.7 +/-    0.56       5.5 +/-    0.56  0.220 / 0.340
G11     307.3          20.1                6.8 +/-    2.98      14.9 +/-    2.98  0.180 / 0.310
G14     285.9          69.0                5.0 +/-    0.62       5.3 +/-    0.62  0.030 / 0.040
G27     225.0          10.1                7.4 +/-    1.64      20.5 +/-    1.64  0.050 / 0.060
G31     176.4          39.5                9.1 +/-    0.97      13.4 +/-    0.97  0.030 / 0.030
G32     3.3            69.0                6.0 +/-    0.66       6.4 +/-    0.66  0.030 / 0.030