PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-09:42:50
G01     102.4          26.6                4.6 +/-    1.05       8.7 +/-    1.05  0.030 / 0.040
G07     112.1          53.9                5.9 +/-    0.76       7.1 +/-    0.76  0.030 / 0.040
G08     42.0           20.6                3.5 +/-    2.84       7.7 +/-    2.84  0.070 / 0.080
G09     173.8          11.0                3.1 +/-    6.85       8.6 +/-    6.85  0.070 / 0.070
G11     85.9           44.3                6.9 +/-    1.14       9.4 +/-    1.14  0.310 / 0.490
G13     306.5          31.7                5.2 +/-    1.32       8.8 +/-    1.32  0.270 / 0.450
G17     206.8          38.2                5.3 +/-    0.94       7.9 +/-    0.94  0.110 / 0.260
G18     76.3           24.5                5.2 +/-    1.49      10.2 +/-    1.49  0.180 / 0.250
G28     309.8          58.7                4.3 +/-    0.80       5.0 +/-    0.80  0.070 / 0.130
G30     30.5           79.5                5.3 +/-    0.80       5.3 +/-    0.80  0.100 / 0.140