PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-09:42:30
G01     80.6           32.3                4.7 +/-    0.80       7.9 +/-    0.80  0.030 / 0.060
G07     130.8          38.0                7.6 +/-    0.89      11.4 +/-    0.89  0.040 / 0.060
G11     62.2           38.5                5.6 +/-    1.48       8.3 +/-    1.48  0.050 / 0.050
G13     285.5          38.7                0.6 +/-    2.46       1.0 +/-    2.46  0.070 / 0.050
G15     310.8          12.3                4.0 +/-    2.03      10.7 +/-    2.03  0.110 / 0.130
G17     218.9          57.8                9.8 +/-    1.14      11.3 +/-    1.14  0.100 / 0.120
G18     56.5           22.0                4.5 +/-    2.00       9.4 +/-    2.00  0.120 / 0.230
G19     216.8          35.1               10.0 +/-    1.50      15.8 +/-    1.50  0.120 / 0.220
G28     346.1          61.5                5.2 +/-    0.60       5.8 +/-    0.60  0.030 / 0.030
G30     121.0          72.7                8.2 +/-    1.25       8.5 +/-    1.25  0.030 / 0.030