PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-20:57:50
G01     318.0          21.7               11.0 +/-    2.56      23.3 +/-    2.56  0.040 / 0.040
G08     256.6          12.6               11.3 +/-   15.99      29.9 +/-   15.99  0.040 / 0.040
G10     83.7           50.2               10.0 +/-    0.51      12.6 +/-    0.51  0.280 / 0.380
G11     303.7          21.7               10.5 +/-    1.25      22.1 +/-    1.25  0.240 / 0.340
G14     291.1          69.0               10.8 +/-    1.32      11.5 +/-    1.32  0.240 / 0.290
G20     108.0          25.6               10.6 +/-    1.81      20.4 +/-    1.81  0.270 / 0.220
G31     174.6          44.4               12.4 +/-    0.64      16.8 +/-    0.64  0.030 / 0.040
G32     13.6           65.5               10.1 +/-    0.45      11.0 +/-    0.45  0.040 / 0.050