PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/01-01:58:00
G01     317.8          20.8                6.8 +/-    2.17      14.7 +/-    2.17  0.160 / 0.280
G08     252.3          11.3               11.6 +/-    2.92      31.4 +/-    2.92  0.120 / 0.290
G10     85.2           50.9                7.1 +/-    1.08       8.9 +/-    1.08  0.250 / 0.260
G11     298.7          25.3                7.8 +/-    1.03      15.2 +/-    1.03  0.210 / 0.220
G14     306.6          70.9                7.6 +/-    0.53       8.0 +/-    0.53  0.080 / 0.170
G18     300.8          43.1                6.9 +/-    4.45       9.6 +/-    4.45  0.120 / 0.170
G20     79.7           65.5               31.2 +/-    0.64      33.9 +/-    0.64  0.040 / 0.030
G22     302.2          11.6                5.7 +/-    3.51      15.3 +/-    3.51  0.040 / 0.040
G31     172.8          47.8               10.1 +/-    0.86      13.1 +/-    0.86  0.130 / 0.310
G32     17.6           63.6                6.1 +/-    0.54       6.8 +/-    0.54  0.130 / 0.380