PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/01-03:27:50
G01     308.6          32.0                5.9 +/-    1.51      10.0 +/-    1.51  0.040 / 0.040
G10     103.5          42.5                8.8 +/-    0.83      12.3 +/-    0.83  0.050 / 0.030
G11     282.2          29.5                8.6 +/-    1.58      15.2 +/-    1.58  0.040 / 0.030
G14     356.6          67.2                7.4 +/-    0.49       8.0 +/-    0.49  0.050 / 0.030
G18     115.6          16.6                7.7 +/-    2.12      18.4 +/-    2.12  0.090 / 0.110
G22     308.7          24.1                6.3 +/-    1.57      12.5 +/-    1.57  0.080 / 0.140
G25     80.5           15.5                7.8 +/-    2.31      19.2 +/-    2.31  0.120 / 0.220
G31     170.9          61.6               12.9 +/-    0.70      14.4 +/-    0.70  0.130 / 0.290
G32     31.2           55.6                5.8 +/-    0.75       6.9 +/-    0.75  0.030 / 0.040