PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/13-18:57:50
G08     279.6          22.1                9.0 +/-    0.95      18.7 +/-    0.95  0.040 / 0.070
G10     40.7           60.8                7.6 +/-    0.24       8.5 +/-    0.24  0.040 / 0.070
G14     241.9          53.2                9.8 +/-    1.06      11.9 +/-    1.06  0.080 / 0.160
G20     84.6           42.0                8.9 +/-    0.41      12.6 +/-    0.41  0.090 / 0.180
G21     152.3          27.1               10.1 +/-    1.53      18.8 +/-    1.53  0.030 / 0.030
G24     46.7           19.2                6.6 +/-    1.14      14.8 +/-    1.14  0.030 / 0.030
G27     241.2          24.3                9.9 +/-    1.98      19.6 +/-    1.98  0.080 / 0.160
G31     180.5          18.6               10.5 +/-    1.41      24.0 +/-    1.41  0.080 / 0.180
G32     292.8          76.9                7.7 +/-    0.91       7.9 +/-    0.91  0.120 / 0.250