PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-21:12:40
G08     314.1          16.1               12.2 +/-    3.17      29.5 +/-    3.17  0.060 / 0.090
G10     329.4          59.8               12.5 +/-    1.06      14.2 +/-    1.06  0.060 / 0.080
G14     216.2          25.2               15.3 +/-    3.24      29.7 +/-    3.24  0.030 / 0.050
G15     46.5           12.8                7.8 +/-    1.09      20.3 +/-    1.09  0.030 / 0.050
G20     34.1           60.8               11.7 +/-    0.42      13.2 +/-    0.42  0.090 / 0.290
G21     130.9          60.9               12.4 +/-    0.75      13.9 +/-    0.75  0.090 / 0.300
G24     79.2           30.6               11.5 +/-    0.52      19.9 +/-    0.52  0.210 / 0.290
G27     279.3          38.1               13.2 +/-    1.93      19.8 +/-    1.93  0.140 / 0.310
G32     219.9          49.9               14.2 +/-    1.57      18.0 +/-    1.57  0.080 / 0.150