PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-02:57:40
G10     306.8          55.1                6.7 +/-    0.92       7.9 +/-    0.92  0.060 / 0.080
G14     211.3          16.1               11.1 +/-    2.48      26.8 +/-    2.48  0.070 / 0.070
G15     45.5           22.7                3.8 +/-    2.11       7.8 +/-    2.11  0.040 / 0.040
G20     4.2            64.7                6.9 +/-    0.58       7.6 +/-    0.58  0.050 / 0.050
G21     109.8          70.9                9.3 +/-    0.90       9.8 +/-    0.90  0.040 / 0.040
G24     92.3           28.2                7.2 +/-    1.22      13.0 +/-    1.22  0.030 / 0.040
G27     295.9          35.8                8.8 +/-    2.73      13.7 +/-    2.73  0.150 / 0.280
G32     212.8          34.8               11.2 +/-    2.08      17.8 +/-    2.08  0.090 / 0.340