PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-15:57:50
G01     41.0           15.8                8.7 +/-    1.11      21.2 +/-    1.11  0.090 / 0.260
G06     174.8          39.6               13.1 +/-    1.07      19.2 +/-    1.07  0.120 / 0.300
G13     239.4          22.0               13.1 +/-    2.29      27.4 +/-    2.29  0.060 / 0.120
G17     8.7            68.5               11.7 +/-    1.02      12.5 +/-    1.02  0.080 / 0.110
G19     283.6          70.9               12.1 +/-    0.86      12.7 +/-    0.86  0.130 / 0.270
G24     317.2          18.0               12.8 +/-    3.03      29.6 +/-    3.03  0.140 / 0.290
G28     72.3           46.5               10.0 +/-    0.87      13.2 +/-    0.87  0.120 / 0.210
G30     155.0          29.3               11.0 +/-    1.12      19.5 +/-    1.12  0.140 / 0.190