PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-14:12:40
G01     40.8           15.5               11.1 +/-    1.19      27.2 +/-    1.19  0.070 / 0.120
G06     175.3          39.7               15.5 +/-    1.02      22.7 +/-    1.02  0.070 / 0.090
G13     239.1          21.6               13.5 +/-    1.51      28.5 +/-    1.51  0.130 / 0.170
G15     271.9          12.1               10.4 +/-    1.21      27.6 +/-    1.21  0.140 / 0.210
G17     9.5            68.0               13.2 +/-    0.80      14.1 +/-    0.80  0.140 / 0.270
G19     285.4          71.0               13.3 +/-    0.69      14.0 +/-    0.69  0.120 / 0.320
G24     317.0          18.4               10.4 +/-    1.96      23.8 +/-    1.96  0.080 / 0.070
G28     73.3           46.1               12.1 +/-    0.80      16.1 +/-    0.80  0.070 / 0.070
G30     155.1          28.2               14.0 +/-    1.84      25.5 +/-    1.84  0.030 / 0.040