PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/13-13:28:00
G02     69.4           23.8                3.3 +/-    0.86       6.7 +/-    0.86  0.080 / 0.240
G05     48.3           54.0                1.4 +/-    0.32       1.7 +/-    0.32  0.120 / 0.250
G12     179.6          18.7                6.5 +/-    1.42      14.8 +/-    1.42  0.030 / 0.040
G13     116.8          22.4                8.5 +/-    0.86      17.7 +/-    0.86  0.030 / 0.040
G15     155.3          23.1                6.1 +/-    1.14      12.4 +/-    1.14  0.070 / 0.120
G20     224.6          10.0               -8.6 +/-    7.00     -24.1 +/-    7.00  0.060 / 0.110
G21     281.4          24.3                6.0 +/-    1.16      11.9 +/-    1.16  0.080 / 0.150
G25     223.0          43.1                8.5 +/-    1.55      11.8 +/-    1.55  0.070 / 0.190
G29     336.0          64.8                2.1 +/-    1.14       2.3 +/-    1.14  0.030 / 0.040