PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-15:13:00
G01     319.4          16.7                6.1 +/-    1.94      14.5 +/-    1.94  0.110 / 0.210
G08     261.1          13.8                6.7 +/-    1.48      17.1 +/-    1.48  0.070 / 0.060
G10     77.2           54.4                7.0 +/-    0.56       8.3 +/-    0.56  0.050 / 0.060
G11     306.5          20.5                6.2 +/-    1.12      13.6 +/-    1.12  0.030 / 0.030
G14     288.9          69.3                7.1 +/-    0.37       7.5 +/-    0.37  0.030 / 0.040
G22     300.2          10.8                1.4 +/-    6.15       3.9 +/-    6.15  0.040 / 0.030
G31     175.9          41.0               10.5 +/-    0.82      15.1 +/-    0.82  0.050 / 0.040
G32     6.2            68.0                5.9 +/-    0.51       6.3 +/-    0.51  0.200 / 0.270