PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/13-20:12:50
G10     263.4          37.4               11.6 +/-    1.20      17.6 +/-    1.20  0.120 / 0.410
G13     43.4           20.0               10.2 +/-    0.83      22.5 +/-    0.83  0.130 / 0.350
G15     64.0           52.0               11.5 +/-    0.58      14.2 +/-    0.58  0.040 / 0.040
G16     282.2          13.8               10.0 +/-    1.97      25.5 +/-    1.97  0.040 / 0.050
G20     292.3          59.1               11.7 +/-    0.58      13.4 +/-    0.58  0.090 / 0.290
G21     353.1          68.7               11.7 +/-    0.47      12.4 +/-    0.47  0.080 / 0.260
G24     125.1          11.8               12.5 +/-    2.25      33.5 +/-    2.25  0.140 / 0.440
G27     320.4          15.5                7.1 +/-    1.69      17.4 +/-    1.69  0.130 / 0.360
G29     166.7          35.9               12.3 +/-    0.58      19.1 +/-    0.58  0.030 / 0.040