PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/18-19:13:10
G08     318.7          12.9                9.1 +/-    4.26      23.8 +/-    4.26  0.050 / 0.080
G10     315.8          57.4                8.3 +/-    1.33       9.6 +/-    1.33  0.050 / 0.070
G14     213.3          17.4               10.8 +/-    2.78      25.3 +/-    2.78  0.120 / 0.370
G15     45.6           18.0                8.6 +/-    2.05      20.0 +/-    2.05  0.140 / 0.270
G20     20.2           63.0                8.9 +/-    1.19       9.9 +/-    1.19  0.040 / 0.040
G21     119.9          67.2               10.9 +/-    0.74      11.7 +/-    0.74  0.040 / 0.050
G24     88.3           29.8               10.4 +/-    1.65      18.3 +/-    1.65  0.260 / 0.310
G27     289.0          37.6                8.4 +/-    3.01      12.7 +/-    3.01  0.100 / 0.220
G32     214.7          42.9               10.5 +/-    1.17      14.7 +/-    1.17  0.100 / 0.120