PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-03:13:00
G01     287.7          40.7                3.7 +/-    1.16       5.3 +/-    1.16  0.030 / 0.020
G03     312.3          16.7                7.4 +/-    1.44      17.7 +/-    1.44  0.020 / 0.020
G10     121.3          27.9                9.8 +/-    1.18      18.0 +/-    1.18  0.090 / 0.080
G11     260.9          26.2               10.6 +/-    3.83      20.2 +/-    3.83  0.080 / 0.150
G14     29.7           56.4                8.4 +/-    1.09       9.9 +/-    1.09  0.060 / 0.080
G22     314.0          39.8                7.9 +/-    1.37      11.5 +/-    1.37  0.040 / 0.080
G25     61.6           17.7                7.2 +/-    1.45      16.8 +/-    1.45  0.040 / 0.080
G26     157.9          13.4               11.8 +/-    1.52      30.5 +/-    1.52  0.050 / 0.060
G31     130.1          80.1               11.0 +/-    0.62      11.1 +/-    0.62  0.040 / 0.040
G32     50.9           42.8                8.0 +/-    1.37      11.1 +/-    1.37  0.070 / 0.050