PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-07:28:00
G01     125.5          11.3                3.0 +/-   18.26       8.2 +/-   18.26  0.030 / 0.040
G07     56.5           68.9                5.6 +/-    0.74       6.0 +/-    0.74  0.040 / 0.040
G08     51.8           41.5                4.0 +/-    0.58       5.7 +/-    0.58  0.020 / 0.040
G09     176.9          35.5                7.2 +/-    1.39      11.4 +/-    1.39  0.030 / 0.030
G11     120.6          36.1                6.2 +/-    0.79       9.6 +/-    0.79  0.120 / 0.440
G13     320.7          12.7                1.6 +/-    1.82       4.2 +/-    1.82  0.090 / 0.350
G17     199.8          13.0                4.8 +/-    4.39      12.6 +/-    4.39  0.150 / 0.380
G18     103.2          16.6                5.5 +/-    1.89      13.2 +/-    1.89  0.120 / 0.350
G28     268.3          46.8                7.7 +/-    1.19      10.1 +/-    1.19  0.090 / 0.290
G30     329.7          58.9                4.3 +/-    0.59       4.9 +/-    0.59  0.080 / 0.280