PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-07:12:40
G07     47.2           69.3                5.2 +/-    0.54       5.5 +/-    0.54  0.040 / 0.040
G08     54.5           43.7                4.4 +/-    0.57       6.0 +/-    0.57  0.040 / 0.040
G09     177.1          38.7                8.0 +/-    1.36      11.9 +/-    1.36  0.030 / 0.040
G11     123.8          34.3                7.7 +/-    1.10      12.3 +/-    1.10  0.030 / 0.040
G17     199.6          10.1               -8.7 +/-   10.73     -24.3 +/-   10.73  0.120 / 0.240
G18     106.0          15.1                6.3 +/-    1.14      15.7 +/-    1.14  0.090 / 0.260
G23     160.2          9.9                 5.2 +/-    1.58      14.5 +/-    1.58  0.280 / 0.400
G28     264.4          44.9                4.9 +/-    0.92       6.6 +/-    0.92  0.200 / 0.280
G30     326.6          56.3                3.5 +/-    0.75       4.1 +/-    0.75  0.080 / 0.080